Green 3D Penguin Cartoon Silicone Case Cover Skin for iPhone 4 4G 4S Provides your iPhone 4 and 4S the maximum protection against scratches and scuffs. Made with grade A silica gel, this case is not only durable and long lasting, but also equips the iPhone 4 and 4S with a soft and comfortable surface. Pre-cut openings allows full access to all features. It is user-friendly, and super easy to install.