Black and Yellow iPhone 4 4s Hybrid Body Armor Hard Protective Case Cover, Three-layer Combo Armor Hybrid Case Cover (PC + Silicone) for Iphone 4 4s 4g 100% Brand New & High Quality Anti-slip properties give more grips on surfaces Made of higher quality OEM premium silicone Durable material, low-profile construction protect your iPhone from scratches and bumps without adding bulk Material: Silicone / Plastic