Ram Mounts Tough-Claw Mount with X-Grip Cradle For Large Phones Features: Consists of the Tough-Claw rail clamp base Long length double socket arm and universal spring loaded X-Grip cradle for large phones and phablets Spring loaded X-Grip cradle expands and contracts, allowing for a perfect custom fit of your phone or phablet Included are easy access grip knobs for quick insertion and release of your handheld device The Tough-Claw rail clamp base is the perfect mounting base for quick and easy tool-less installation and removal on round, square, odd shaped rails and bars Can be clamped on rails from 0.625 - 1.5 outer diameter Includes a device tether recommended for outdoor applications Minimum Width 1.75 (Minimum Height 5.5) Maximum Width 4.5 (Minimum Height 3.25) Depth 0.875