1.3M STRONG STICKER How it works: This card holder can stick on the back of the phone, you you could put your ID card,Credit card, Driver license, Debit card, Discount card. Except stick on phone, it can stick on every smooth surface place. If you didn’t stick it perfectly the first time, peel off, adjust, and re-stick. 2.Comfortably Carries 3 Cards  3.5*2.28 3.Compatible With All Phones & Cases 4.Use For Phone & More Space Besides of a stick wallet for your phone & cases, you can stick it on your computer desk and put your pens in it, stick on mirror and put your comb , makeup tools. You also stick it on your iPad, car window, car dash, refrigerator door, home front door, etc.