Sturdy steel construction holds two monitors up to 28.5 in. and 20 lb. each. Fully adjustable. Height: 15 in. range on pole. 360° rotation. Tilts +45° to -45°, pan +90° to -90°. Arm swivels 90°. Easily clamp mounts to surfaces up to 3.25 in. thick. Cord management clips on the arms and pole. Sold by each.