adjustmentsChairs feature an air-lift lever for easy adjustment and tilt tension control. Includes an extra thick tailored 23W x 23"D seat cushion, an S-shaped back cushion for continual support to the upper and lower back, 5-leg base, and upholstered arms over a heavy-duty, oval-tube frame. Frame available in black only. Long-wearing, 100% polypropylene fabric is available in 5 colors: -01 black, -02 blue, -09 dark grey, -44 wine, -65 dark blue. To view fabric choices, simply click on View Swatches located above. Safety casters (part number C9R-BK) are available in sets of 5 and sold separately. Overall dimensions: 35H x 25W x 28"D Seat height adjusts 17 1/2-21 1/2"