4.5 cm x 6.5 cm rectangular thin metal plate (2Pcs), diameter 4 cm ( 2Pcs) round metal plates | Please note that the metal plate does not have magnets. They are the only spare parts compatible with magnetic mounts | Stick to the back of your phone or put it between your phone and the case.The Adhesive magnetic plate has strong adhesion, which can keep your equipment stable and safe during driving. | If you stick a phone magnet plate on the back of your phone or phone case, you may disable wireless charging. | rectangular thin metal plate (2Pcs), diameter 4 cm ( 2Pcs) round metal plates