Extra-wide 22" platform provides ample space for both feet. Height and tilt adjustable. Heavy-duty steel construction for extra stability. 3M Safety-Walk Slip-resistant Surface keeps feet from sliding. Ergonomic design positions you properly to help reduce back， neck and leg strain and prevent fatigue. Independently adjustable height and angle help you maximize proper body alignment and comfort. Color: Charcoal Grey and Black. Size: 14inches x 22inches x 4 in.