Cell Armor Zebra on Black Silicone for Apple iPhone 4 4S Hybrid 2 in 1 Rubber Cover Case-Purple Quantity: 1 Silicone Rubber skin & Plastic Cover Hybrid 2 in 1 Design. Simple Installation. Skin slides over iPod and Plastic Cover snaps on top. Jazz up your phone with many different designs/colors. Provides Protection from scratches. Material: Silicone Rubber Skin/ Plastic Cover