Metal Plate, Pop-Tech 6 Pack Universal Mount Metal Plate with Adhesive for Magnetic Car Mount Cell Phone Holder, 2 Rectangular and 4 Round These car metal plates themselves are not magnetic, just metal, but they can work with all magnetic car phone mount holder Can be used to universal magnet mounts for vents, CD slot and windows designed to hold devices with the mount metal plate for wireless charging ,attached metal plate onto phone case and take off case when needed to be charged Universal mounting plate replacement Secure 3m metal plate clear protective stickers between your phone/phone case and metal plate to avoid scratching