Tough-Claw Mount w/Universal X-Grip Phone HolderThe RAM-HOL-UN7-400U consists of the small Tough-Claw base and universal X-Grip holder. The X-Grip holder 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 holder expands and contracts for perfect fit of most smart phones. This mount rotates 360 degrees. The RAM-HOL-UN7-400U includes the RAM Tough-Claw; the perfect mounting base for quick and easy tool-less installation and removal on round, square, odd shaped rails and bars and flat surfaces. The compact design allows easy installation in a wide variety of applications including motorcycles, kayaks and boats, bicycles, wheelchairs, medical carts and more. The marriage of tool-less removal and a low-profile makes this must have accessory easy to pack with you wherever you go. Clamping Range (Rail/Tube Surfaces):0.625" to 1.5" Clamping Range (Flat Surfaces):0" to 1.14" Holder Dimensions: Minimum Width = 1.875"Maximum Width = 3.25"Depth = 0.875" Material: High Strength Composite & Stainless Steel Note: The “U” in the part number reflects product packaged in poly bag.