Increase comfort & productivity by placing your keyboard & mouse at a proper level. This keyboard has a lever adjust arm that ensures positive lock on platform height – just flip lever to right, adjust height & move lever back to lock in place. Tilt is adjusted with separate pull lever. Adjusts height to 1/2" above mounting surface & 5 1/2" below mounting surface. Standard all-in-one platform with wooden construction minimizes bouncing. Includes all-in-one leatherette gel wrist rest with antimicrobial product protection & Precise ™ Optical Mouse Pad that can be placed on right or left of keyboard. Workstation Type: 90° Corner; Curved; Diagonal; Straight; Sit-to-Stand Option: No; Weight Capacity: 70 lbs.; Height (+/- Desktop): +1/2" / -5 1/2".