Volt task chair offers black leather upholstery, comfort, function, and style and adapts to each user with simple comfort controls for added flexibility. Generous proportions and a contoured back deliver optimal comfort. Functions include pneumatic seat-height adjustment, 360-degree swivel, tilt, tilt tension and tilt lock. Design includes a 17-1/4" wide back and seat that are fully padded, and 2-1/2" hooded dual-wheel casters. Seat size is 18-1/2" wide x 18-3/4" deep. Usable seat depth is 18-3/4".