The mid-back conference chair has a pneumatic height adjustment with a single position tilt lock, recline tension adjustment and it can support up to 300 lbs. The model in the picture has a grey mesh back with Ebony fabric upholstery, fixed cantilever arms and an aluminum base with carpet casters. It is available in different colors and it's backed by a 12-year manufacturer's warranty including the foam, 5 years for the mesh.