The HON COMPANY HON5701SB11T Task Chair Tilt 25.75 in. x 25.75 in. x 40 in. Leather- Black 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 . Seat-to-floor height ranges from 18 to 22-1/4 . Distinctive, V-shaped back measures 17-1/4 wide x 18-3/4 high from the seat. Chair also features a plastic outer back and black frame. Chair meets or exceeds applicable ANSI/BIFMA and ISTA performance standards. Height-adjustable arms are sold separately.