Premium lycra material: cell phone card wallet, 3M adhesive stick firmly at your cell phone back. Flexible, stretchy, durable, easy turn your cell phone into a handy pouch. No more need for a bulky wallet or purse. | Tight and high safety: This cell phone stick on wallet uses a 3M adhesive tape backing for a strong, firm, long-lasting hold. The highly elastic lycra spandex fabric holds the content of the pocket from falling, even when the pocket is upside down! | Carries everything you need without the bulk: flexible, expandable phone card holder can hold up to 8 cards such as credit card, debit card, VIP card, license, business card, Promotion card, working card, gym card, earbuds or similar daily small gadgets easily. | Compatible with all smartphones & tablets: which has a flat back or case, with enough Size to Fit a credit card. Support all smartphones with a minimum size of 4-inch LCD or larger such as the iPhone 4/ 4S/ 5/ 5S/ 6/ 6 Plus/ 6S/ 6S/ 7 plus/ 7, Galaxy S2/ S3/ S4/ S5/ S6/ S7, Samsung Galaxy Note 1/ 2/ 3/ 4/ 5/ 6/ 7, LG G2/ G3/ G4/ G5, HTC M8, iPod touch, Sony Xperia, all iPads including iPad Air, Galaxy, surface Pro, and so much more! | Package: 2 pieces cell phone card holder together; usage: 1. Clean the back of your mobile Device. 2. Remove the film of the adhesive. 3. Place the card case on the back of your phone and press it for a minutes to stick firmly. Also it won't leave a sticky residue if you choose to move it.