<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><g id="stop-circle"><path d="M12,21a9,9,0,1,1,9-9A9,9,0,0,1,12,21ZM12,4.5A7.5,7.5,0,1,0,19.5,12,7.5,7.5,0,0,0,12,4.5Z"/><rect x="8" y="8" width="8" height="8" rx="1.5"/></g></svg>