Strong adhesive sticker is firmly attached to the back of your phone. If you didn't stick it perfectly at the first time, peel off, adjust and re-stick. No sticky residue will be left after removing it. Replace your bulky wallet or purse with a slim phone pocket comfortably holds up to 4 cards (credit cards, ID card, drivers license, business card, debet card and some cash). Widely used for computer back, glass, car window, car dash, desk, refrigerator door or home front door. 3 7/16" L x 2 1/4" W