Functions This metal ring sticker is NOT MAGNET NOT MAGNETIC but it will enhance magnetic strength to ensure your phone stays securely attached to all magnetic accessories such as Magsafe charger magnetic wallet/battery pack/power bank. Help your standard case compatible for fast and easy wireless charging. For the other phones that do not support wireless charging with this metal ring attached to your phone case you can use a magnetic wallet/grips/phone holder/car mount ect easily.Wide Compatibility This universal magnetic adapter ring is recommended to stick on the outside of the TPU or PC standard cell phone case. It will help to strengthen the magnetizing when attach to all magnetic accessories such as magnetic charging/phone grip ring/phone holder/car mount ect.. Compatible with iphone or Android such as iphone 13 pro max/ 13 pro/ 13 mini iphone 12 pro max/ 12 pro/ 12 mini Galaxy S22 Ultra / S8/9/10/20/21 / Note8/9/10/20 and more.Ultra Thin Metal Ring Made of high quality NONMAGNET metal material and strong adhesive sticker. Thin and light but with durable and stable performance.Easy to Install Tear off the protective film on the surface attach it on the outside of a smooth and flat phone case. NOTE Metal ring is NOT work for Silicone Case and Uneven Case. Wait for 24 hours to use after pasting.Size Package Outer diameter 56MM Inside diameter 46MM. Thickness 0.55MM. Weight 2.5g. You will get 3 x Silver Metal Rings.