Double socket arm mount with one round base with AMPS hole pattern and one square base with VESA hole pattern. VESA plate has 75x75MM and 100x100MM hole patterns. Mount is 7.35" tall at maximum extension and is collapsible. Constructed of marine grade aluminium with stainless hardware and black powder coat finish. The rubber ball and socket feature dampens shock and vibration. For most applications the mount will support up to five kilos. Material: Powder Coated Marine Grade Aluminium Ball Size 1.5" Rubber Ball Size Components. RAM-201 RAM-202 RAM-246