The RAM-B-108-A, powder coated marine grade aluminium mount, consists of a short double socket arm with a 2.5" diameter round base with the universal AMPS hole pattern and a u-clamp base with strap 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-A RAM-B-202 RAM-B-108B