Hybrid Case compatible with Apple iPhone 4 / 4S, Smoke TPU / White Hard Keep your Apple iPhone 4 / 4S safe and protected in style with dual-layered protective accessory case. Removable plastic layer protects top, back and bottom of phone to provide extra security against bumps and falls. Ridged design for better grip. Shock absorbent, shatterproof, and anti-scratch material. TPU, also known as thermoplastic polyurethane, is more cut and tear resistant than rubber. Color: Smoke TPU / White Plastic. Material: TPU Rubber / Hard plastic. Size: Perfect fit.