Professional two-tier structure provides a 35.4 in (900 mm) wide main desk surface with plenty of room for a dual monitor setup, documents & other desktop accessories, an integrated keyboard & mouse deck, and ergonomically-designed beveled edges to help reduce contact stress. SmartFit® System simplifies ideal ergonomic height positioning using scientifically proven research to help prevent injury and increase comfort. Pneumatic lift with tension aAdjustment System allows you to easily adjust lift tension based on the workstation's weight load for smooth and effortless adjustment between sitting and standing positions. Space-saving design. 22.8 in (580 mm) Height extension accommodates the needs of taller individuals with a sturdy and stable workstation even when fully extended. 35 lb (15.9kg) weight capacity. Fully assembled. Black.