The Arkon Slip Grip cradle allows you to keep on any protective case or skin while viewing Apple iPhone 3G/3Gs from a convenient air vent in your vehicle. A discreet, tidy alternative to suction cup windscreen mounts. Suitable for almost all standard horizontal air vents - see pictures. The spring loaded retaining clips will fit devices between 80mm & 120mm. This super slim gripper style allows the most chunkiest of cases to stay on the iPhone 3G/3Gs. The Arkon removable air vent mount uses crocodile style clips making it quick and easy to attach to and remove from the vent louvers. Ideal for swapping from vehicle to vehicle. The cradle can be rotated through 360 degrees so the phone can be viewed horizontally or vertically. Perfect for the new SatNav applications available.