iGadgitz Dual Tone Black Durable Crystal Gel Skin (Thermoplastic Polyurethane TPU) Case Cover for Samsung Galaxy S 2 i9100 Android Smartphone Cell Phone + Screen Protector. SUITABLE FOR AT & T MODEL ONLY (model number SGH-I777). Prevents grip enduced signal loss problems. Textured sides give added grip. Made from durable TPU (Thermoplastic Polyurethane) with stylish Dual Tone two texture effect Flexibility of a silicone skin with the durability of a hard plastic case. Full access to all controls, functions and plug ins while cased. Supplied with stick-on screen protector for total protection to your Samsung Galaxy S 2 i9100.