CardNinja Ultra-slim Self Adhesive Credit Card Wallet for Smartphones, Black CardNinja can store up to 8 cards AND cash using a durable elastic fabric (drivers license, gym card, train pass) Using 3M adhesive, CardNinja securely attaches to the back of your device. It removes cleanly too! Compatible with the following smartphones: iPhone X / 8 / 8 Plus / 7 / 7 Plus / 6 / 6 Plus / 5 / 5s / 5c / 4 / 4s, Samsung Galaxy S6 / S5 / S4 / S3, Galaxy Note 5 / 4 / 3 / 2 / 1, LG G3 / G2 / Optimus series, Nexus 6 / 5 / 4, HTC M8 / EVO / Desire / Sense, iPod Touch, Sony Xperia and much more! Works with nearly ANY phone case including: Otterbox, Lifeproof, CaseMate, Belkin, Speck, Apple and more Reviewed by the biggest names in tech: CNET, The New York Times, Macworld, USA Today, The Wall Street Journal, The Next Web, and Cult of Mac The Original! CardNinja (by cubi) is the worlds first PATENTED adhesive smartphone wallet. Designed in California 90-day worry free guarantee. 100% USA based customer support