The magsafe sticker can connect your phone with Magsafe more firmly, its thickness is 0.5mm (about 0.02 inches), you don't have to worry about the slow charging speed. If the magsafe sticker ring is removed, it will not be able to be firmly attached to the phone or phone case again. The magsafe ring is made of special metal material, its edge is polished flat, and wear-resistant, beautiful and non-toxic but will not hurt your hands. There are 9 Pcs metal rings in different colors in the package, the metal ring is not magnetic. You can choose according to the color of your phone or phone case, each color can bring you a good mood. You can install the magsafe ring on the back of the phone or phone case, only compatible with PC or TPU phone cases, not compatible with silicone cases or cases with rubber coating. The MagSafe sticker can compatible with iPhone 13/12/11/X/8 series, the Samsung Galaxy S21, and more.