Gas Spring assisted arm helps easy adjustment for viewing comfort All cables can be neatly concealed inside the arm for an exceptionally clean look When not outstretched, the arms can fold close to the wall for space saving. Rubber rings are in place to avoid bumps against the wall. The aluminum alloy and steel construction makes the arm sturdy? Specifications: Weight Capacity: HA-236: 1~6 kg (2.2~13.2 lbs) HA-256: 6~12 kg (13.2~26.4 lbs) Tilt: 20° up and 35° down (display) & 20° up and 60° down (arm) Material: Aluminum alloy and plastic cover Mounting Option: Wall box type Pivot: 180°, 370°, 270° (wall, arm, display) Extension: 1907mm Box Dimension: 306 (L) x 101 (W) x 266 (H) mm Display Compatibility: VESA 75/100mm