The HON Wave Mesh Mid-Back Chair, with Height-Adjustable Arms, in Black, provides ergonomic adjustments and a clean visual design that make this chair a great investment. The task chair features a breathable two-layer woven mesh back that conforms to the upper body and a sandwich mesh seat, both provide additional support and exceptional comfort. Adjustable-height arms move up and down for shoulder and upper body support. The desk chair has a synchro-tilt mechanism that reclines the back at a higher ratio than the seat for proper back alignment. The task chair has an upright tilt lock, tilt tension, and pneumatic seat height adjustment to round out the ergonomic features available to help customize the chair for your needs. The computer chair features a five-star base that is molded from reinforced resin and has a 360-degree swivel that provides freedom of movement. This multi-purpose chair features a 250 lb weight capacity and is backed by the HON Limited 5-Year Warranty.