The X-Grip Holder With Low Profile Tough-Claw Base Kit consists of the small Tough-Claw™ base and universal X-Grip® cradle. 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. High-strength composite and stainless steel. The cradle is compatible with handheld devices that will fit the dimensions listed below. Cradle Dimensions: Minimum width = 1.875" (minimum height = 4.25"). Maximum width = 3.25" (minimum height = 2.25"). Depth = 0.875". Clamping Range: Rail / tube surfaces: 0.625" to 1.5".