This uniquely designed office chair features dual lumbar support cushions that flex and provides extreme comfort. 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. The mid-back design offers support to the mid-to-upper back region. The back tilts to change the angle of your torso to reduce disc pressure. 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. BT-2755-BK-GG Color Black Finish Black Nylon Upholstery Black Mesh Made of Foam, Mesh, Metal, Plastic Contemporary Task Chair Mid-Back Design Flexible Mesh Back Material Flexible Double Lumbar Support Cushions Back Tilt Lock Padded Black Mesh Upholstered Seat Waterfall Seat promotes healthy blood flow Swivel Seat Pneumatic Seat Height Adjustment Nylon Arms Heavy Duty Nylon Base Dual Wheel Casters CA117 Fire Retardant Foam Final Closeout Item All Sales are Final Capacity 250 lbs. Some Assembly Required Warranty Info 2 yr Parts Overall Dimensions 24.50 W x 26 D x 38.50 42.25 H Seat Dimensions 19.50 W x 17.50 D Back Dimensions 17.50 W x 23.50 H Seat Height 16.50 20.50 H Arm Height from Floor 23.25 27.25 H Arm Height from Seat 7 H