The RAM motorcycle handlebar base contains a 1" rubber ball designed to sit at right angles to the mounting rail. The zinc coated metal u-bolt accommodates rails in diameter from 0.5" to 1.25" in diameter. Included are black cover caps to be placed over the exposed ends of the u-bolt. The spring loaded holder has a 1" rubber ball connected to the back of the base. Included are extra easy access grip knobs located on the back of the holder for quick release of your tablet. It easily expands and contracts for perfect fit of most 7" tablets. CUSTOMS, DUTY, BROKERAGE, VAT & OTHER charges may be imposed by the destination country; these costs are typically collected by the carrier at the time of delivery and are the responsibility of the purchaser. We have no control over this either; please c