Device Cradle - X-Grip® - Large - U-Bolt - Consists of a zinc-coated U-bolt base, double socket arm and universal spring-loaded X-Grip® IV cradle for large phones and phablets - Package includes hardware that will accommodate rails from 0.50" to 1.25" in diameter - Base comes with black cover caps to place over exposed ends of the U-bolt - Included composite rail adapter narrows the rail to a minimum width of 0.5" - Mount is designed with a RAM B-sized 1" diameter patented rubber ball and socket system that features adjustment points at both ends of the double socket arm; allows for almost infinite adjustment and perfect viewing angles - Spring-loaded X-Grip® IV cradle expands and contracts, allowing for a perfect custom fit of phone or phablet - X-Grip® also includes a device tether recommended for outdoor applications - Cradle is compatible with handheld devices that will fit the following dimensions: minimum width of 1.75" with a minimum height of 5.5"; maximum width of 4.5" with a minimum height of 3.25"; depth of 0.875" - U-Bolt dimensions: 0.50" to 1.25" - It is important to verify the dimensions of your handheld device with a case/sleeve/skin when determining the overall size.