Hourglass icon

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48" width="24" height="24"><g fill="none" stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-width="4"><path d="M8 4H40"/><path d="M8 44H40"/><path d="M12 4V16L21 26"/><path d="M36 44V29.5L27 21"/><path d="M12 44V30L18.5 23.5"/><path d="M36 4V16L29.5 23.5"/><path d="M18 33H19"/><path d="M29.1465 32.6465L29.8536 33.3536"/><path d="M24 38H25"/></g></svg>