Boss Office Products Black Contemporary Ergonomic Adjustable Height Swivel Executive Chair Fence Line Post Its 12 point box end design Its 12 point box end design ensures precision and ease of use you can also enable the Smart Away feature to randomly turn your lights on and off to look like you’re home even if you’re away (smart bridge ) 275 Adjustable Height Yes Package Quantity 1 Arms Fixed Folding No Massaging No Heated No Lumbar Support Yes Ergonomic Yes Casters Yes BIFMA ANSI Certified No CA Residents: Prop 65 Warning(s) No Arm Type Fixed Swivel Yes Tilting Yes UNSPSC 56101500 Beautifully upholstered in black LeatherPlus LeatherPlus is leather that is polyurethane infused for added softness and durability Passive ergonomic seating with built in lumbar support Pneumatic gas lift seat height adjustment Large 27in nylon base for greater stability Upright locking positions Adjustable tilt tension control Hooded double wheel casters