JKase&reg; Streamline Series Black Durable Silicone Protective Skin Case Cover for Apple iPhone 3GS / 3G - [JKase Retail Packaging] Material : High Quality Thermoplastic Polyurethane TPU rubberized gel silicone skin case. Extremely durable and provides a soft comfortable grip. Soft touch feel on a durable shell cover. Give your phone a customized look while adding protection. Brand New JKase in Sealed Retail Packaging.