diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index f45c06a..d61474a 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -4,6 +4,9 @@ env:
   VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }}
 
 on:
+  push:
+    branches:
+      - main
   pull_request:
     types:
       - closed
diff --git a/.pnp.cjs b/.pnp.cjs
index 1870cd5..e8984ef 100755
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -48,7 +48,6 @@ const RAW_RUNTIME_STATE =
           ["@types/node", "npm:22.10.7"],\
           ["@types/react", "npm:18.3.18"],\
           ["@types/react-dom", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:18.3.5"],\
-          ["@types/react-gtm-module", "npm:2.0.4"],\
           ["@typescript-eslint/eslint-plugin", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:8.20.0"],\
           ["@typescript-eslint/parser", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:8.20.0"],\
           ["@vitejs/plugin-react", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:4.3.4"],\
@@ -69,7 +68,6 @@ const RAW_RUNTIME_STATE =
           ["prettier", "npm:3.4.2"],\
           ["react", "npm:18.3.1"],\
           ["react-dom", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:18.3.1"],\
-          ["react-gtm-module", "npm:2.0.11"],\
           ["react-router-dom", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:7.1.3"],\
           ["sass", "npm:1.83.4"],\
           ["sass-loader", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:16.0.4"],\
@@ -4693,15 +4691,6 @@ const RAW_RUNTIME_STATE =
         "linkType": "HARD"\
       }]\
     ]],\
-    ["@types/react-gtm-module", [\
-      ["npm:2.0.4", {\
-        "packageLocation": "./.yarn/cache/@types-react-gtm-module-npm-2.0.4-ba9b45b661-0bba7b8416.zip/node_modules/@types/react-gtm-module/",\
-        "packageDependencies": [\
-          ["@types/react-gtm-module", "npm:2.0.4"]\
-        ],\
-        "linkType": "HARD"\
-      }]\
-    ]],\
     ["@types/resolve", [\
       ["npm:1.20.6", {\
         "packageLocation": "./.yarn/cache/@types-resolve-npm-1.20.6-6ab126a04b-a9b0549d81.zip/node_modules/@types/resolve/",\
@@ -10803,7 +10792,6 @@ const RAW_RUNTIME_STATE =
           ["@types/node", "npm:22.10.7"],\
           ["@types/react", "npm:18.3.18"],\
           ["@types/react-dom", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:18.3.5"],\
-          ["@types/react-gtm-module", "npm:2.0.4"],\
           ["@typescript-eslint/eslint-plugin", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:8.20.0"],\
           ["@typescript-eslint/parser", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:8.20.0"],\
           ["@vitejs/plugin-react", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:4.3.4"],\
@@ -10824,7 +10812,6 @@ const RAW_RUNTIME_STATE =
           ["prettier", "npm:3.4.2"],\
           ["react", "npm:18.3.1"],\
           ["react-dom", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:18.3.1"],\
-          ["react-gtm-module", "npm:2.0.11"],\
           ["react-router-dom", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:7.1.3"],\
           ["sass", "npm:1.83.4"],\
           ["sass-loader", "virtual:bf4b7fdd92a9723d0b8b3c0ad1d9b3bf177b06bda2d8d90eee6bb9b559bcf7f6a4e86d3e1e4088168d00f3b758fa58c40c57bffe4a3e68627cd86f7a3c1c2191#npm:16.0.4"],\
@@ -11873,15 +11860,6 @@ const RAW_RUNTIME_STATE =
         "linkType": "HARD"\
       }]\
     ]],\
-    ["react-gtm-module", [\
-      ["npm:2.0.11", {\
-        "packageLocation": "./.yarn/cache/react-gtm-module-npm-2.0.11-99adaedaa9-ceedf296a1.zip/node_modules/react-gtm-module/",\
-        "packageDependencies": [\
-          ["react-gtm-module", "npm:2.0.11"]\
-        ],\
-        "linkType": "HARD"\
-      }]\
-    ]],\
     ["react-is", [\
       ["npm:17.0.2", {\
         "packageLocation": "./.yarn/cache/react-is-npm-17.0.2-091bbb8db6-2bdb6b93fb.zip/node_modules/react-is/",\
diff --git a/.yarn/cache/@types-react-gtm-module-npm-2.0.4-ba9b45b661-0bba7b8416.zip b/.yarn/cache/@types-react-gtm-module-npm-2.0.4-ba9b45b661-0bba7b8416.zip
deleted file mode 100644
index 371ca56..0000000
Binary files a/.yarn/cache/@types-react-gtm-module-npm-2.0.4-ba9b45b661-0bba7b8416.zip and /dev/null differ
diff --git a/.yarn/cache/react-gtm-module-npm-2.0.11-99adaedaa9-ceedf296a1.zip b/.yarn/cache/react-gtm-module-npm-2.0.11-99adaedaa9-ceedf296a1.zip
deleted file mode 100644
index ebb819c..0000000
Binary files a/.yarn/cache/react-gtm-module-npm-2.0.11-99adaedaa9-ceedf296a1.zip and /dev/null differ
diff --git a/package.json b/package.json
index 4d5d83c..1cae871 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,6 @@
     "classnames": "^2.5.1",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
-    "react-gtm-module": "^2.0.11",
     "react-router-dom": "^7.1.3",
     "zustand": "^5.0.3"
   },
@@ -47,7 +46,6 @@
     "@types/node": "^22.10.7",
     "@types/react": "^18.3.18",
     "@types/react-dom": "^18.3.5",
-    "@types/react-gtm-module": "^2",
     "@typescript-eslint/eslint-plugin": "^8.20.0",
     "@typescript-eslint/parser": "^8.20.0",
     "@vitejs/plugin-react": "^4.3.4",
diff --git a/src/hooks/common/useChannelTalk.ts b/src/hooks/common/useChannelTalk.ts
index 6d64833..796028f 100644
--- a/src/hooks/common/useChannelTalk.ts
+++ b/src/hooks/common/useChannelTalk.ts
@@ -11,7 +11,7 @@ export const useChannelTalk = () => {
     ChannelService.loadScript();
 
     ChannelService.boot({
-      pluginKey: import.meta.env.VITE_CHANNEL_TALK_KEY || "",
+      pluginKey: import.meta.env.VITE_CHANNEL_TALK || "",
       hideChannelButtonOnBoot: true,
     });
   }, []);
diff --git a/src/main.tsx b/src/main.tsx
index ca223cf..30dba31 100644
--- a/src/main.tsx
+++ b/src/main.tsx
@@ -1,7 +1,6 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
 import { StrictMode } from "react";
 import ReactDom from "react-dom/client";
-import TagManager from "react-gtm-module";
 
 import { ReactQueryDevtools } from "@tanstack/react-query-devtools";
 
@@ -17,33 +16,28 @@ import { ToastProvider } from "@/hooks/common/useToast";
 import "@/styles/reset.scss";
 import "@/styles/global.scss";
 
-const gtmTag = {
-  gtmId: import.meta.env.VITE_GTM_ID,
-};
-
-const initializeGA4 = () => {
-  const ga4Id = import.meta.env.VITE_GA4_ID;
-
-  const script = document.createElement("script");
-  script.async = true;
-  script.src = `https://www.googletagmanager.com/gtag/js?id=${ga4Id}`;
-  document.head.appendChild(script);
+const GA4_ID = import.meta.env.VITE_GA4_ID;
 
-  script.onload = () => {
-    (window as any).dataLayer = (window as any).dataLayer || [];
+const addGtagScript = () => {
+  if (!GA4_ID) return;
 
-    (window as any).gtag = function (...args: any[]) {
-      (window as any).dataLayer.push(args);
-    };
+  const script1 = document.createElement("script");
+  script1.src = `https://www.googletagmanager.com/gtag/js?id=${GA4_ID}`;
+  script1.async = true;
+  document.head.appendChild(script1);
 
-    (window as any).gtag("js", new Date());
-    (window as any).gtag("config", ga4Id);
-  };
+  const script2 = document.createElement("script");
+  script2.innerHTML = `
+    window.dataLayer = window.dataLayer || [];
+    function gtag(){ dataLayer.push(arguments); }
+    gtag('js', new Date());
+    gtag('config', '${GA4_ID}');
+  `;
+  document.head.appendChild(script2);
 };
 
 if (import.meta.env.MODE === "production") {
-  TagManager.initialize(gtmTag);
-  initializeGA4();
+  addGtagScript();
 }
 
 ReactDom.createRoot(document.getElementById("root")!).render(
diff --git a/src/pages/CreateReviewFailPage/CreateReviewFailPage.tsx b/src/pages/CreateReviewFailPage/CreateReviewFailPage.tsx
index 32c56cb..bc3951f 100644
--- a/src/pages/CreateReviewFailPage/CreateReviewFailPage.tsx
+++ b/src/pages/CreateReviewFailPage/CreateReviewFailPage.tsx
@@ -19,7 +19,10 @@ const CreateReviewFailPage = () => {
   const { resetScanData } = useScanDataStore();
 
   const handleNavigateHome = () => {
-    gTagLogEvent("create_review_fail_home_button");
+    gTagLogEvent("create_review_fail_home_button_click", {
+      category: "Button",
+      label: "create_review_fail_home_button",
+    });
     resetGenerateReviewData();
     resetCreateReviewData();
     resetScanData();
diff --git a/src/pages/HomePage/HomePage.tsx b/src/pages/HomePage/HomePage.tsx
index c3f7f4d..15273d9 100644
--- a/src/pages/HomePage/HomePage.tsx
+++ b/src/pages/HomePage/HomePage.tsx
@@ -60,7 +60,10 @@ const HomePage = () => {
           <button
             className={styles.ShareButton}
             onClick={() => {
-              gTagLogEvent("share_button");
+              gTagLogEvent("share_button_click", {
+                category: "Button",
+                label: "share_button",
+              });
 
               send({ type: AppBridgeMessageType.SHARE, payload: { shareText: getShareText() } });
             }}
@@ -89,7 +92,10 @@ const HomePage = () => {
             text="갤러리"
             iconName="gallery"
             onClick={() => {
-              gTagLogEvent("gallery_button");
+              gTagLogEvent("gallery_button_click", {
+                category: "Button",
+                label: "gallery_button",
+              });
 
               send({ type: AppBridgeMessageType.OPEN_GALLERY, payload: "" });
 
@@ -100,7 +106,10 @@ const HomePage = () => {
             text="카메라"
             iconName="camera"
             onClick={() => {
-              gTagLogEvent("camera_button");
+              gTagLogEvent("camera_button_click", {
+                category: "Button",
+                label: "camera_button",
+              });
 
               send({ type: AppBridgeMessageType.OPEN_CAMERA, payload: "" });
 
diff --git a/src/pages/LoadingPage/LoadingPage.tsx b/src/pages/LoadingPage/LoadingPage.tsx
index e0c6d8f..e70c2fd 100644
--- a/src/pages/LoadingPage/LoadingPage.tsx
+++ b/src/pages/LoadingPage/LoadingPage.tsx
@@ -26,7 +26,10 @@ const LoadingPage = () => {
   const { resetScanData } = useScanDataStore();
 
   const handleNavigateToHome = () => {
-    gTagLogEvent("loading_close_button");
+    gTagLogEvent("loading_close_button_click", {
+      category: "Button",
+      label: "loading_close_button",
+    });
 
     resetGenerateReviewData();
     resetCreateReviewData();
diff --git a/src/pages/ReceiptEditPage/ReceiptEditPage.tsx b/src/pages/ReceiptEditPage/ReceiptEditPage.tsx
index 5431a5d..13e434d 100644
--- a/src/pages/ReceiptEditPage/ReceiptEditPage.tsx
+++ b/src/pages/ReceiptEditPage/ReceiptEditPage.tsx
@@ -85,7 +85,10 @@ const ReceiptEditPage = () => {
       <Navbar>
         <Navbar.LeftButton
           onClick={() => {
-            gTagLogEvent("receipt_edit_home_button");
+            gTagLogEvent("receipt_edit_home_button_click", {
+              category: "Button",
+              label: "receipt_edit_home_button",
+            });
 
             handleNavigateToHome();
           }}
@@ -141,7 +144,10 @@ const ReceiptEditPage = () => {
                 text="다시 스캔하기"
                 variant="secondary"
                 onClick={() => {
-                  gTagLogEvent("receipt_edit_rescan_button");
+                  gTagLogEvent("receipt_edit_rescan_button_click", {
+                    category: "Button",
+                    label: "receipt_edit_rescan_button",
+                  });
 
                   handleNavigateToHome();
                 }}
diff --git a/src/pages/ReceiptInputPage/ReceiptInputPage.tsx b/src/pages/ReceiptInputPage/ReceiptInputPage.tsx
index 1d5e293..e535f7b 100644
--- a/src/pages/ReceiptInputPage/ReceiptInputPage.tsx
+++ b/src/pages/ReceiptInputPage/ReceiptInputPage.tsx
@@ -67,7 +67,10 @@ const ReceiptInputPage = () => {
   };
 
   const handleHomeClick = () => {
-    gTagLogEvent("receipt_input_back_button");
+    gTagLogEvent("receipt_input_back_button_click", {
+      category: "Button",
+      label: "receipt_input_back_button",
+    });
     resetScanData();
     navigateToHome();
   };
diff --git a/src/pages/RecognitionFailPage/RecognitionFailPage.tsx b/src/pages/RecognitionFailPage/RecognitionFailPage.tsx
index 2b67bd8..b4b2856 100644
--- a/src/pages/RecognitionFailPage/RecognitionFailPage.tsx
+++ b/src/pages/RecognitionFailPage/RecognitionFailPage.tsx
@@ -21,13 +21,21 @@ const RecognitionFailPage = () => {
   const { resetScanData } = useScanDataStore();
 
   const handleNavigateToHome = () => {
-    gTagLogEvent("recognition_fail_close_button");
+    gTagLogEvent("recognition_fail_close_button_click", {
+      category: "Button",
+      label: "recognition_fail_close_button",
+    });
+
     resetScanData();
     navigateToHome();
   };
 
   const handleNavgateToReceiptInput = () => {
-    gTagLogEvent("receipt_input_button");
+    gTagLogEvent("receipt_input_button_click", {
+      category: "Button",
+      label: "receipt_input_button",
+    });
+
     resetScanData();
     navgateToReceiptInput();
   };
@@ -58,7 +66,10 @@ const RecognitionFailPage = () => {
             text="다시 촬영하기"
             variant="secondary"
             onClick={() => {
-              gTagLogEvent("camera_retry_button");
+              gTagLogEvent("camera_retry_button_click", {
+                category: "Button",
+                label: "camera_retry_button",
+              });
 
               send({ type: AppBridgeMessageType.OPEN_CAMERA, payload: "" });
             }}
diff --git a/src/pages/ReviewResultPage/ReviewResultPage.tsx b/src/pages/ReviewResultPage/ReviewResultPage.tsx
index bbadb62..8e31063 100644
--- a/src/pages/ReviewResultPage/ReviewResultPage.tsx
+++ b/src/pages/ReviewResultPage/ReviewResultPage.tsx
@@ -49,7 +49,10 @@ export default function ReviewResultPage() {
   };
 
   const handleRetryCreateReview = () => {
-    gTagLogEvent("review_retry_button");
+    gTagLogEvent("review_retry_button_click", {
+      category: "Button",
+      label: "review_retry_button",
+    });
 
     resetGenerateReviewData();
 
@@ -92,7 +95,10 @@ export default function ReviewResultPage() {
             iconName="paste"
             size="sm"
             onClick={() => {
-              gTagLogEvent("copy_button");
+              gTagLogEvent("copy_button_click", {
+                category: "Button",
+                label: "copy_button",
+              });
 
               send({ type: AppBridgeMessageType.COPY, payload: { review: generateReviewData } });
 
@@ -106,7 +112,10 @@ export default function ReviewResultPage() {
         <Button
           text="홈으로 가기"
           onClick={() => {
-            gTagLogEvent("home_button");
+            gTagLogEvent("home_button_click", {
+              category: "Button",
+              label: "home_button",
+            });
             handleOpen();
           }}
         />
diff --git a/src/pages/SelectStylePage/SelectStylePage.tsx b/src/pages/SelectStylePage/SelectStylePage.tsx
index 3dc8dce..b7529af 100644
--- a/src/pages/SelectStylePage/SelectStylePage.tsx
+++ b/src/pages/SelectStylePage/SelectStylePage.tsx
@@ -55,7 +55,10 @@ const SelectStylePage = () => {
   };
 
   const handleCreateReview = () => {
-    gTagLogEvent("create_review_button");
+    gTagLogEvent("create_review_button_click", {
+      category: "Button",
+      label: "create_review_button",
+    });
 
     const mappedStyle = STYLE_NAME_MAPPING[selectedStyle.name];
 
@@ -92,7 +95,11 @@ const SelectStylePage = () => {
           <div className={styles.ExampleButtonBox}>
             <button
               onClick={() => {
-                gTagLogEvent("style_example_button");
+                gTagLogEvent("style_example_button_click", {
+                  category: "Button",
+                  label: "style_example_button",
+                });
+
                 handleOpen();
               }}
             >
@@ -116,7 +123,11 @@ const SelectStylePage = () => {
                   [styles.isSelected]: selectedStyle.name === style.name,
                 })}
                 onClick={() => {
-                  gTagLogEvent(style.tagId);
+                  gTagLogEvent(`${style.tagId}_click`, {
+                    category: "Button",
+                    label: `${style.tagId}`,
+                  });
+
                   handleStyleClick(style);
                 }}
               >
diff --git a/src/pages/SelectTagPage/SelectTagPage.tsx b/src/pages/SelectTagPage/SelectTagPage.tsx
index 2800657..5721abe 100644
--- a/src/pages/SelectTagPage/SelectTagPage.tsx
+++ b/src/pages/SelectTagPage/SelectTagPage.tsx
@@ -80,7 +80,11 @@ const SelectTagPage = () => {
             <Tag
               variant="add"
               onClick={() => {
-                gTagLogEvent("add_tag_button");
+                gTagLogEvent("add_tag_button_click", {
+                  category: "Button",
+                  label: "add_tag_button",
+                });
+
                 setIsBottomSheetOpen(true);
               }}
             />
diff --git a/src/utils/gtag.ts b/src/utils/gtag.ts
index d7cfa54..3fafd75 100644
--- a/src/utils/gtag.ts
+++ b/src/utils/gtag.ts
@@ -1,10 +1,4 @@
-export const gTagLogEvent = (eventLabel: string) => {
-  if (typeof window !== "undefined" && typeof window.gtag === "function") {
-    window.gtag("event", "click", {
-      event_category: "button",
-      event_label: eventLabel,
-    });
-  } else {
-    console.warn("Google Analytics is not initialized yet.");
-  }
+export const gTagLogEvent = (eventName: string, eventParams: object = {}) => {
+  if (!window.gtag) return;
+  window.gtag("event", eventName, eventParams);
 };
diff --git a/yarn.lock b/yarn.lock
index 3c37ca9..7d0454d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3038,13 +3038,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/react-gtm-module@npm:^2":
-  version: 2.0.4
-  resolution: "@types/react-gtm-module@npm:2.0.4"
-  checksum: 10c0/0bba7b841617fca4a23aacdd6e69299e0b9f193988d381db285e91de3b17bf4599bc58236d2f76a2eb2cf589b4e4d665d66feb2f90f87b549e957a79765ffec6
-  languageName: node
-  linkType: hard
-
 "@types/react@npm:^18.3.18":
   version: 18.3.18
   resolution: "@types/react@npm:18.3.18"
@@ -8290,7 +8283,6 @@ __metadata:
     "@types/node": "npm:^22.10.7"
     "@types/react": "npm:^18.3.18"
     "@types/react-dom": "npm:^18.3.5"
-    "@types/react-gtm-module": "npm:^2"
     "@typescript-eslint/eslint-plugin": "npm:^8.20.0"
     "@typescript-eslint/parser": "npm:^8.20.0"
     "@vitejs/plugin-react": "npm:^4.3.4"
@@ -8311,7 +8303,6 @@ __metadata:
     prettier: "npm:^3.4.2"
     react: "npm:^18.3.1"
     react-dom: "npm:^18.3.1"
-    react-gtm-module: "npm:^2.0.11"
     react-router-dom: "npm:^7.1.3"
     sass: "npm:^1.83.4"
     sass-loader: "npm:^16.0.4"
@@ -9167,13 +9158,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react-gtm-module@npm:^2.0.11":
-  version: 2.0.11
-  resolution: "react-gtm-module@npm:2.0.11"
-  checksum: 10c0/ceedf296a1232934788583e4a20452a82e872fcd79e24827bf615b1cd3bceb59c294d169b1bf8313ba48b9e480e681ce520cd2a5cf2381c5aaa1fb74d4f88930
-  languageName: node
-  linkType: hard
-
 "react-is@npm:^17.0.1":
   version: 17.0.2
   resolution: "react-is@npm:17.0.2"