The RAM-231 is a U-Bolt mount with 1.5" rubber ball. The "Rust-Proof" stainless steel u-bolt accommodates rails in diameter from 0.5" to 1" in diameter. Included are black cover caps to be placed over the exposed ends of the u-bolt and a composite adapter that can narrow the rail to a minimum width of 0.5".
Black Powder Coat
1.5" Rubber Ball "C" Size
Powder Coated Marine Grade Aluminium