Sturdy metal frame with easy-grip side handle and gas piston assist, can raise and lower up to 35 in with continuous height adjustment from 5 in up to 17 in above desktop to optimize the ergonomic work position. 37.5 x 20. 5 in desktop that holds up to two 32 in monitors and retractable keyboard tray is 29. 5 x 11.8 in. Sold by each. Black.