The Space Seating 24/7 Intense Use Office Chair with Breathable Air Grid® is designed to provide exceptional support for hard-working professionals in extended use or multiple use environments. The Breathable Dark Air Grid® back with height adjustable lumbar support keep you cool and poised even after working long hours to meet a deadline. Increased density memory foam seating ensures long-lasting comfort. Equipped with key features that assist to accommodate individual needs such as: Easy One-touch pneumatic seat height adjustment, smooth transitioning 2-to-1 Synchro tilt control with adjustable tilt tension and seat slider, and helpful height adjustable arms with PU padding. Set upon a durable black nylon angled base with oversized dual wheel carpet casters that deliver easy mobility. Covered with an impressive 24/7 Elite Seating warranty for 5 years on all component parts, and 2 years on foam and fabric.