NavJack Premium Bumper Case with Glass Fiber Skin for iPhone 4 - Skin - Retail Packaging - Pearl White iPhone 4 bumper with real glass fiber back protective skin Triple action molding process includes PC body for structure, TPE flanges for drop and edge protection, and ABS actuators for precise button control Includes high-quality microfiber cleaning cloth The Trim Series comes in Chamois Black bumper with carbon fiber back protective skin, and Pearl White bumper glass fiber back protective skin