ALE Interval Series Swivel Tilt Mesh Chair, Black The ideal task chair for all-day seating comfort and perfect in any office. Great in tight workspaces. Breathable mesh back is height adjustable. Durable premium fabric upholstery designed to resist abrasions and fading. Waterfall seat edge helps relieve pressure points at the back of the knee. Five-star base with casters for easy mobility. Features: The ideal task chair for all-day seating comfort and perfect in any office Great in tight workspaces Breathable mesh back is height adjustable Durable premium fabric upholstery designed to resist abrasions and fading Waterfall seat edge helps relieve pressure points at the back of the knee Five-star base with casters for easy mobility Specifications: Color: Black Arms Included: No Back Height Adjustment: Yes Tilt Tension/Tilt Lock: Yes Seat Width Maximum: 19 7/8 Seat Depth Maximum: 18 1/4 Seat Height Minimum: 18 1/2 Seat Height Maximum: 23 1/4 Seat Material: 100% Acrylic Back Width Maximum: 17 1/4 Back Height Minimum: 16 3/4 Back Height Maximum: 18 Back Material: Mesh Base Material: Nylon Caster/Glide/Wheel: Five 2 hooded casters Wheel Tread: Hard Dimension: 12.600 H x 23.220 W x 25.600 D Weight: Supports up to 250 lbs