Chivel (Red White Bumper Frame) + (V-Series Black Hot Pink Protector Case Cover) for Apple Verizon At&t Sprint iPhone 4S iPhone 4 Silicon 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. Make your iPhone 4S or iPhone 4 stands out from others. You can ONLY use Apple synchronize cable when you wear this bumper V-Series have plastic frame and Alumnium back plate that provide full protection.