This leather upholstered office chair provides a professional appearance to complement your office or home. High back office chairs have backs extending to the upper back for greater support. The high back design relieves tension in the lower back, preventing long term strain. Chair easily swivels 360 degrees to get the maximum use of your workspace without strain. The pneumatic adjustment lever will allow you to easily adjust the seat to your desired height. BT-238-BK-GG Color Black Finish Black Nylon Upholstery Black Leather Made of Foam, Leather, Metal, Plastic Contemporary Office Chair High Back Design with Headrest Black Leather Upholstery Tilt Lock Mechanism Tilt Tension Adjustment Knob Swivel Seat Pneumatic Seat Height Adjustment Padded Arms Heavy Duty Nylon Base Dual Wheel Casters CA117 Fire Retardant Foam Capacity 250 lbs. Some Assembly Required Warranty Info 2 yr Parts Overall Dimensions 23 W x 22.50 D x 42.50 47 H Seat Dimensions 20.50 W x 19.75 D Back Dimensions 20 W x 26 H Seat Height 18.50 23 H Arm Height from Floor 26 30.50 H