Practical and adaptable for most office settings, mid-back office chairs are the logical choice for performing an array of tasks. A mid-back office chair offers support to the mid-to-upper back region. This chair is ideal for anyone who does a great deal of typing throughout the day and needs good back support. The perforated back offers a ventilated design. The back tilts to change the angle of your torso to reduce disc pressure. 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. WL-3958SYG-BK-GG Color Black Finish Black Nylon Upholstery Black Fabric Made of Fabric, Foam, Metal, Plastic Contemporary Task Chair Mid-Back Design Perforated Plastic Back Locking Back Angle Adjustment Padded Black Fabric Upholstered Seat Swivel Seat Pneumatic Seat Height Adjustment Heavy Duty Nylon Base Dual Wheel Casters CA117 Fire Retardant Foam Made In Taiwan TAA Compliant Capacity 250 lbs. Some Assembly Required Warranty Info 2 yr Parts Overall Dimensions 25.50 W x 25.50 D x 39 43.25 H Seat Dimensions 19 W x 18 D Back Dimensions 18 W x 21 H Seat Height 18.75 23 H