ByHeart asking alexandria Hard Back Case Skin for Apple iPhone 4 and 4S - 1 Pack - Retail Packaging - 3345 Hard plastic material insure a high quality Beautiful image on the back only, not include both sides Water resistant, Dustproof, Durable, Radiation protection Perfect fit for iphone 4 and 4s, install and remove easily Different designs and colors for your choice, Just make it by your heart