Silicone Gel Skin Sleeve BLACK Rubber Soft Cover Case for LG THRILL 4G / OPTIMUS 3D (AT&T) [WCC1083] Soft case with rubberized smooth touch. Made of durable, high-grade environment-friendly Silicone. Designed to offer all-around external surface protection to your phone. Provides anti-slip grip with a soft, more comfortable feeling to hold Smart design, gives you total access to all functionality and buttons.