The RAM-B-231-1U a 1″ rubber ball designed to sit at right angles to the mounting rail. The stainless steel coated metal u-bolt accommodates rails in diameter from 1″ to 1.25″ in diameter. The base also includes black cover caps to be placed over the exposed ends of the u-bolt.
(2) 1/4″-20 Nylock Nuts
(2) Rubber Caps