This mesh computer chair features a curved back that gives it a contemporary appearance. Mesh office chairs can keep you more productive throughout your work day with its comfort and ventilated design. The breathable mesh material allows air to circulate to keep you cool while sitting. 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 waterfall front seat edge removes pressure from the lower legs and improves circulation. 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. The flip-up arms are great for users who like the option of an armless chair without the hassle of detaching them. BL-X-5M-BK-GG Color Black Finish Black Nylon Upholstery Black Mesh Made of Foam, Mesh, Metal, Plastic Contemporary Task Chair Mid-Back Design Ventilated Mesh Back Material Built-In Lumbar Support Tilt Lock Mechanism Tilt Tension Adjustment Knob Padded Black Mesh Upholstered Seat Waterfall Seat promotes healthy blood flow Swivel Seat Pneumatic Seat Height Adjustment Padded Flip-Up 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 25.75 W x 25 D x 37.50 41.25 H Seat Dimensions 20.50 W x 19 D Back Dimensions 20 W x 23 H Seat Height 17.25 20.75 H Arm Height from Floor 26.25 30.25 H Arm Height from Seat 8.50 H