We present a new style task chair for you the 5 star steel base is more stable when you seat the wheels make the chair move smoothly.The high quality gaslift is safe when you seat. The chair provid good quality mesh even a long time you use. Maximum Dimensions: 16.7 inches W x 21.7 inches D x 35.6 40.4 inches H Seat Width:16.7 inches Seat Depth: 16.3 inches Seat Height: 18.3 inch 23 inches Back Width: 15.6 inches Back Height: 17.7 inches Maximum Dimensions: 16.7 inches W x 21.7 inches D x 35.6 40.4 inches H Seat Width:16.7 inches Seat Depth: 16.3 inches Seat Height: 18.3 inch 23 inches Back Width: 15.6 inches Back Height: 17.7 inchesHeight adjustable from 35.6″ to 40.4″ to meet needs360° Swivel to offer a versatile range of motion allowing for multi tasking convenience the wheel casters make it easy to roll around your room or office as neededHeavy Duty solid structure with high capacity. Mesh Backrest offer great support for your back when you sit5 star Metal base keeps the chair stable. Pneumatic seat height adjustment Manufacturer: ; Model: OC-H12-Red; MPN: OC-H12-Red; Part Number: OC-H12-Red; UPC: 790304670220; Color: Black; Brand: BestOffice; Department: ; Size: 1; Warranty: ; Label: ;