Ergonomic seating is feature-packed for personalized comfort Pneumatic seat height adjustment, back height adjustment, 360-Degree swivel, tilt and tilt tension control Height/width adjustable arms ensure a custom fit for people of all sizes Upholstery with stain-resistant protection Black frame and standard casters Tilt lock Seat: 19w by 20-Inch Chair Type: Rolling Chair; Folding/Stacking: N\A; Width: N\A; Depth: N\A