3M self-adhesive and removable without leaving any marks , Made of durable silicone rubber,Holds credit cards, license, ID's, cash and more ,Offers RFID protection , Will not demagnetize credit cards , Easy peel and sticks to the back of any phone or case , Variety of colors to choose from,Put a handy pocket in the back of your Smart phone with this Mobile Wallet, Best Seller Handy Pocket for Cellphone Smart Case Silicone Rubber.