Customized Wallets, Double Pocket Silicone Smart Wallet - Adhesive & 4 Card Capacity, 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 has 2 card pouches which holds up to 4 cards securely. Perfect for travel beach days or a night out. ... #TW700 $1.42/each.