Chivel (TM) Black Transparent Clear Protector Bumper Frame Case Cover for Apple Verizon At&t Sprint iPhone 4S iPhone 4 Silicon/TPU trim is a bumper that wraps around the side edge of the iPhone 4S providing bump and shock protection. The bumper helps separate your hand from the phone's metal edge band minimizing possible signal loss. The bumper case does not come with front and back plate. Make your iPhone 4S stands out from others. You can ONLY use Apple synchronize cable when you wear this bumper