The RAM-B-101-235, powder coated marine grade aluminium mount, consists of a double socket arm mount with a 2.5" diameter round base with the universal AMPS hole pattern and a double u-bolt base. Rubber 1" ball and socket technology dampens shock and vibration, as well as allowing for almost infinite adjustment and perfect viewing angles. For most applications the mount will support up to 1.5kg. Ball Size: 1" Rubber "B" Ball Size Colour: Black Material: Powder Coated Marine Grade Aluminium Components RAM-B-201 RAM-B-202 RAM-B-235