how to change size material ui icons

1import React from "react";
2import MailIcon from "@material-ui/icons/Mail";
3
4export default function App() {
5  return (
6    <div>
7      <MailIcon fontSize="small" />
8      <MailIcon />
9      <MailIcon fontSize="large" />
10      <MailIcon style={{ fontSize: 50 }} />
11    </div>
12  );
13}
14