*****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 *****Height adjustable from 35.6" to 40.4" to meet needs *****360 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 needed *****Heavy Duty solid structure with high capacity. Mesh Backrest offer great support for your back when you sit *****5 star Metal base keeps the chair stable. Pneumatic seat height adjustment