Handlebar Rail Mount with Zinc Coated U-Bolt Base and Universal X-Grip Cradle for 10″ Large TabletsThe RAM-B-149Z-UN9U consists of a zinc coated u-bolt base, double socket arm, round base adapter and universal X-Grip clamping cradle for 10″ tablets. Included in this package is hardware that will accommodate rails from 0.50″ to 1.25″ in diameter. The base includes black cover caps to be placed over the exposed ends of the u-bolt. The included composite rail adapter can narrow the rail to a minimum width of 0.5″. The mount is designed with a RAM 1″ diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. The X-Grip clamping cradle consists of a composite spring loaded cradle, expandable grip arms and additional bottom support keeper. Included are extra easy access grip knobs, located on the back of the cradle for quick release of your tablet. The X-Grip clamping cradle expands and contracts for perfect fit of most 10″ tablets with or without sleeves, as well as some smaller tablets. Please verify dimensions of your tablet below for compatibility with the X-Grip.X-Grip Dimensions:Minimum Width = 6.25″Maximum Width = 8.1″Depth = 0.875″Maximum Length (using additional supports) = 10.25″U-Bolt Dimensions:0.50″ to 1.25″X-Grip Features:Spring loaded cradle expands and contracts for perfect fit of your tabletRubber coated tips will hold your tablet firm and stableSocket technology allows for multiple adjustment angles and articulation of your tabletEasy access grip knobs, located on the back of the cradle for quick release of your tabletMultiple mounting access points on the back of the cradleAdditional support keeper at the bottom of the cradleFull access to all portsLifetime warrantyMaterial:Powder Coated Marine Grade Aluminum, Marine Grade Stainless Steel Components & High Strength CompositeNote:The “U” in the part number reflects product packaged in poly bag.