Custom Wallets, Silicone Smart Wallet - 3-Card Capacity & Adhesive Back, Be smart and keep your important cards close to you without the bulk of a bag or old school wallet. This silicone wallet attaches to your cell phone with adhesive glue and holds up to 3 cards securely. Perfect for travel beach days or just a regular night out. *** Samsung S8 iPhone 8/Plus and newer phones with the back glass surface*** These phones are made of a glass material and the adhesive glue will not work on this material. For this product, a case must be used if the phone has a glass back surface. ... #TW100 $1.17/each.