The RAM-102-B-2461 consists of a short double socket arm and two 3.625" square plates with VESA hole pattern. The VESA plates contains 75x75MM hole patterns. The rubber ball is positioned 0.88" from the center of one edge. The rubber ball and socket technology dampens shock and vibration, as well as allowing for almost infinite adjustment and perfect viewing angles. Material: Powder Coated Marine Grade Aluminium Ball Size: 1.5" Rubber Ball Size Components RAM-201-B RAM-2461 x 2