Ideal for tight workspaces and all-day seating comfort. Molded plastic shell resists impact. Waterfall seat edge helps relieve pressure points on the underside of legs. Five-star base with casters for easy mobility. Optional Arms sold separately. Recommended applications: General office and task Pneumatic seat height adjustment: Yes Back height adjustment: Yes Tilt Tension/Tilt lock: Yes Arms included: No Seat/Back color: Black Leather Warranty: 5 Years Deal Alera® Interval Series Leather Desk Chair