Ivyskin Wrangler for iPhone 4- Raz Red Drop-proof original IvySkin Glass Touch-Thru screen Four layers of protection; PolyCarbonate, Polysilicon, enhanced TPE and Glass Touch-Thru screen Upgraded Polysilicon tactile solution to enhance the tactility for the button you use the most - the home button. Optional Battery-Pak and CardClip are designed for added functions to this case Protected by a one-year IvySkin warranty