【4-Piece Replacement Kit】4.5cm*6.5cm rectangular metal plate x 2pcs, round metal plate, diameter 4cm X 2pcs 【Material】This product is made of high quality manganese steel, and its matte surface is easier to clean than ordinary surface. 【Slim and practical】The ;The product thickness is only 0.5mm, which is light and convenient. The metal plate is very thin and light, the 3M adhesive has a good effect and is easy to install. 【For Magnetic Mounting】The metal plates are mainly used for magnetic phone holder, and metal sheets are not magnetic.A metal adhesive on the back of the 3M for the mounting plate on the back of the phone. 【Tips】 The metal plate is not magnetic. The metal plate is designed for the magnetic holder of the mobile phone and the 39;effect is very good. If the phone case is very thick (more than 0.1cm thick), it will affect the iron and magnet. Maybe the phone will slide off the magnet, we recommend you to install a piece of iron on the outer surface of the phone case or