Adeco CH0162 Bentwood Adjustable Desk Chairs, Walnut/Matt Black Materials: PU Leather, plywood, Chromed Steel Dimensions: Height of Seat: 18 9"-21 7"; Overall: 20 1*23*32 3-40(length x width x Height) Features: a perfect combination of the relaxing Seat design and Functionality 360 degree swivel, adjustable Height and tilt, full metal pedestal base for heavy duty use light assembly required 360 degree swivel, adjustable Height and tilt, full metal pedestal base for heavy duty use light assembly required