NTK iPhone 4 4S Dual Blade Polycarbonate Rubberized Slim Fit Front and Back Cover Two Piece Design Hard Case (Black/Silver) Designed For and Compatible with your Apple iPhone 4 Durable polycarbonate material is malleable and protects your phone from scratches, fingerprints, and damage. Rubberized Finish Comfortable To Touch With Anti-Slip Function Two Pieces Design Protects Both Front and Back of Your iPhone Round Opening in The Back To Show Off Your Original iPhone Apple Logo Easy to install with the snap two piece installation Easily access all of the iPhone features without obstruction: display screen, dock connector, headphone port, microphone, and camera lens Premium Material Helps to Resolve iPhone 4 Signal Loss Issue and Boost Your iPhone Signal Receiption and Performance--No More Dropped Calls