CoverON(&trade;) Silicone Skin GREEN Rubber Soft Sleeve Protector Cover Case for SAMSUNG i9020 NEXUS S [WCA70] Soft case with silicon skin 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.