PU, zinc alloy;Smartphone pocket with rotating Metal ring on back that transforms device into stand; Includes removable 3M™ adhesive back for placement on smartphone, cell phone or mobile device; Single pocket doubles as a wallet – insert transit cards, credit cards, IDs, and business cards; United States Design Patent No: D874454; California Prop 65 Warning; Product Size: 2.4" w x 3.62" h x 0.125" d;