diff --git a/README.md b/README.md
index 7c5e411..401f8ee 100644
--- a/README.md
+++ b/README.md
@@ -61,13 +61,13 @@ export default Example;
 
 ## 👀 Props
 
-| Prop            | Description                 | Type                 | Default                                       |
-| --------------- | --------------------------- | -------------------- | --------------------------------------------- |
-| `data`          | Share Object                | `{text, url, title}` | `{text: "", url: currentURL, title: "Share"}` |
-| `sites`         | sites                       | `string[]`           | all platforms (see list below for key list)   |
-| `closeText`     | translate close             | `string`             | localise close text                           |
-| `onClick`       | callback on sucessful share |                      |                                               |
-| `disableNative` | disables native share       | `boolean`            | `false`                                       |
+| Prop            | Description                  | Type                 | Default                                       |
+| --------------- | ---------------------------- | -------------------- | --------------------------------------------- |
+| `data`          | Share Object                 | `{text, url, title}` | `{text: "", url: currentURL, title: "Share"}` |
+| `sites`         | sites                        | `string[]`           | all platforms (see list below for key list)   |
+| `closeText`     | translate close              | `string`             | localise close text                           |
+| `onClick`       | callback on successful share | `() => void`         |                                               |
+| `disableNative` | disables native share        | `boolean`            | `false`                                       |
 
 ## 🌎 Sites
 
diff --git a/src/components/icon/list.tsx b/src/components/icon/list.tsx
index d832008..a09cf14 100644
--- a/src/components/icon/list.tsx
+++ b/src/components/icon/list.tsx
@@ -1,10 +1,8 @@
 import React from "react";
 
-import { IconItem } from "../../interfaces";
+import { IconItem, Site } from "../../interfaces";
 
-export interface IconListObject {
-  [key: string]: IconItem;
-}
+export type IconListObject = Record<Site, IconItem>;
 
 const externalOpen = (URL) => window.open(URL, "_blank", "noopener");
 
diff --git a/src/interfaces.ts b/src/interfaces.ts
index c8b7d0d..71808a6 100644
--- a/src/interfaces.ts
+++ b/src/interfaces.ts
@@ -1,3 +1,5 @@
+import { ReactElement } from "react";
+
 export interface ShareData {
   text?: string;
   title?: string;
@@ -5,32 +7,44 @@ export interface ShareData {
 }
 
 export interface RWebShareProps {
-  children: any;
+  children: ReactElement;
   closeText?: string;
   data: ShareData;
-  sites?: string[];
-  onClick?;
-  disableNative?;
+  sites?: Site[];
+  onClick?: () => void;
+  disableNative?: boolean;
 }
 
 export interface SocialIconsProps {
-  onClose;
+  onClose: IconProps["onClose"];
   closeText?: string;
-  sites: string[];
+  sites: Site[];
   data: Required<ShareData>;
-  onClick?;
+  onClick?: IconProps["onClick"];
 }
 
 export interface IconProps {
-  onClose;
-  name: string;
+  onClose: () => void;
+  name: Site;
   data: Required<ShareData>;
-  onClick?;
+  onClick?: (name: Site) => void;
 }
 
 export interface IconItem {
   path: JSX.Element;
-  e;
+  e: (url: string, text: string, title: string) => void;
   color: string;
   viewBox?: string;
 }
+
+export type Site =
+  | "facebook"
+  | "twitter"
+  | "whatsapp"
+  | "reddit"
+  | "telegram"
+  | "linkedin"
+  | "mail"
+  | "copy"
+  | "vk"
+  | "okru";
diff --git a/src/sharer.tsx b/src/sharer.tsx
index 18fbc63..9b04436 100644
--- a/src/sharer.tsx
+++ b/src/sharer.tsx
@@ -7,9 +7,9 @@ import { IconList } from "./components/icon/list";
 import { Portal } from "./components/portal";
 import { SocialIcons } from "./components/social-icons";
 import { useDisclosure } from "./hooks/use-disclosure";
-import type { RWebShareProps } from "./interfaces";
+import type { RWebShareProps, Site } from "./interfaces";
 
-const defaultSites = Object.keys(IconList).slice(0, 8);
+const defaultSites = Object.keys(IconList).slice(0, 8) as Site[];
 
 export const RWebShare = memo((props: RWebShareProps) => {
   const { onOpen, onClose, isOpen } = useDisclosure();
@@ -31,7 +31,7 @@ export const RWebShare = memo((props: RWebShareProps) => {
     if (window.navigator.share && !props.disableNative) {
       try {
         await window.navigator.share(shareData);
-        props.onClick();
+        props.onClick?.();
       } catch (e) {
         console.warn(e);
       }