Pidzoom Helmet Mirror new in the box
$40 at Pidzoom and on Amazon. Asking $20
see https://pidzoom.com/products/helmet-mirror
and
https://www.amazon.com/Cycling-Adjustable-Rotatable-Accessories-Activities/dp/B0DDJQP979/ref=sr_1_1?crid=3KAA7VTBVHC4I&dib=eyJ2IjoiMSJ9.EklQIbxxfwIZ1yUGHBpdJgSKFrMVH0Ahlnkf3DUAYnejQoBjRDIcpt0D1gO88RUN24SGu4muXuq3zUmAf8zN3oUfZiTB9gd17LFtdjSrwS5j0gLbuMmyFkP4tvtklbx5m8pvJ5wZHYZPeWbFkj73CGuYovPNG1Fd6Dv23bnkNcJYrJdKrE8Ns-fKWWmTVGZyF-AcHICCJ5BdG6c2dfmIqG9QhppFr8VEmbm3KI3ULDsoOmejVi7jGJbzDKEfJi0H0KONbz2eA-URXKuLcOXM5I-JJ816A87BIifuUZiDwF4.A5VPYjqfXz9eIBsQWEzZe2zO1o0J1uX2knNB06WC2vg&dib_tag=se&keywords=pidzoom%2Bhelmet%2Bmirror&qid=1778791734&sprefix=Pidzoom%2Caps%2C297&sr=8-1&th=1