TOOGOO White w/Yellow Bumper for iphone 4 & 4S Bumper fits the side of Iphone 4 & 4S, there is no back part Protects against scratches and scrapes Special (Thermoplastic Polyurethane) TPU material which can be twisted without cracking TPU provides the strength of hard case while providing flexibility and durability of a silicone case Two Tone Color Bumper (Middle is White, Side is Yellow)