Description: iWOWCase Offer Best Rock Metallic, E13ctron Series Aluminum Metal iPhone 4 Bumper Case-Black/BlueThe sleekest, lightest and most functional aluminum case Machined from a solid piece of 6061 t6 aluminum and weighing less than 20 grams (4 nickels). Suspended Case around the iphone 4s' antenna provides a non interrupted signal. The S4 case is a two piece design having a front and back cover held together by six stainless steel screws. Provides easy access to all controls and ports. Gloss or matt finished on surface. ... more