Feature: Package:8 Rectangle Size:1.8" x 2.6", the thickness of 0.5 mm Color:Black Method of Application:Scratch-Resistant Protective Films Included, Simply stick magnet sticker for phone mount behind your case/battery cover, on a rugged case, or directly to your device. Warm Notice: They are METAL, NOT magnetic plates, designed to attach your cellphone to magnetic car mounts! Don't rub the edge,keep these away from babies and children. Don't be as a toy.Then device will automatically suck as it closes to the car mount