Universal 1-20PCS 30x0.3mm Round Sticker Metal Plate Disk Iron Sheet for Magnetic Mobile Phone Holder Magnet Car Bracket Patch

300.3mm magnetic sheet double-sided adhesive magnetic iron sheet mobile phone holder magnetic sheetType: magnetic sheetPurpose: Used to cooperate with magnetic mobile phone holder (itself does not have magnetism)Material: iron sheetSize: 30mm in diameter and 0.3mm in thicknessQuantity: 1Description:Suitable for all smart phones, tablets and GPS devices.Safely protect equipment or hands from scratches.Easy to put on and take off, leaving no residue.Instructions:If your phone has a protective cover, you can stick the metal plate to the outside of the phone protective cover.If you do not use a protective cover, you can paste the metal plate on the back of the phone.The package includes:1/2/5/10/15/20Mobile phone holder magnetization sheet