Mesh office chairs can keep you more productive throughout your work day with its comfort and ventilated design. This chair features transparent, breathable mesh material that allows air to circulate and molds to your body. The mid-back design offers support to the mid-to-upper back region. 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. This mesh office chair features a flexible, but firm back to provide a comfortable sitting experience. [BT-2779-GG]• Contemporary Task Office Chair• Mid-Back Design• Transparent Black Mesh Back and Seat• Built-In Lumbar Support• Contoured Back and Seat• Tilt Lock Mechanism rocks/tilts the chair and locks in an upright position• Waterfall Seat reduces pressure on your legs• Swivel Seat• Pneumatic Seat Height Adjustment• Padded Arms• Heavy Duty Chrome Base• Dual Wheel Casters• Seat-Size:19"W x 18.5"D• Back Size:18"W x 18.5"H• Arm-Height From Floor:28" - 31"H• Seat Height:18" - 21"H• Assembly Required:Yes• Manufacturer Color:Black• Data Mapping Color:Black• Finish:Chrome Metal• Upholstery:Black Mesh• Back Material:Mesh• Adjustable• Not Adjustable Arms• Back Type:Mid• Base Style:5-Star• Residential Use• Not reversable• No Under Seat Storage• Degree of Swivel:360• Back Color:Black• Seat Color:Black• Frame Color:GrayOverall Dimension:25.5"Wx21"Dx41"x44"H