From the brand Holder Case Metal Ring Sticker for Magsafe Sticky Adhesive If you have any problems when you begin to use, please click the “Your account” -“Orders” -“VOLPORT order “-“Get help”. Product Dimensions ‏ : ‎ 3.15 x 3.15 x 0.04 inches; 1.23 ounces Date First Available ‏ :…