Compatible for Almost All Smartphone or Phone Case. Compatible with iPhone, samsung, galaxy, androids, Huawei and tablets. Can also attach to nearly any case. How to Use 1) Clean the back of your cell phone or case. 2) Peel off the cover of the sticker. 3) Stick the card holder on the back of your mobile phone or case. cell phone card holder credit card holder for cell phone iphone wallet stick on stick on wallet Durable Material Our card holder for back of phone is made of durable PU leather and stretchy Lycra fabric, which prevents your credit / id cards from falling, even when the pocket is upside down! Durability and won't be deformed. stick on wallet for cell phone wallet sticker for back of phone sticky wallet for back of phone Replace Wallet & More Space Never need to carry such big wallet outdoor. With Double Pocket Design, big enough to hold your credit cards,business card, id, key, earphones, etc. phone credit card holder phone case card holder cell phone wallet iphone card holder stick on More Multiple Use Than Your Expectation Not just only a phone card holder, it can stick on every smooth surface place. Add a extra pocket in car, desk, fridge or any other place you want to organize daily essentials, simple your life！