Consists of the small Tough-Claw base and universal X-Grip cradle for large phones and tablets. The X-Grip cradle has a clean and clever four leg design that sports great holding power without hiding your smart-phone behind foam pads and plastic. The X-Grip cradle expands and contracts for perfect fit of most smart phones. This mount rotates 360 degrees. The X-Grip includes a device tether recommended for outdoor applications. Clamping Range (Rail/Tube Surfaces): 0.625" to 1.5" Clamping Range (Flat Surfaces): 0" to 1.14"