Boss Office Products Black Contemporary Ergonomic Adjustable Height Swivel Task Chair Touchless Patented Easy Set design allows Patented Easy Set design allows you to set and release the trap with one hand Side Handle Included No Forward Reverse Rocker Switch No Weight (lbs High back styling upholstered with commercial grade fabric Sculptured waterfall seat made from molded foam that contours to the shape of your body Ratchet back height adjustment allows perfect positioning of the back cushion for lumbar support Adjustable height armrests with soft polyurethane Width adjustable armrest allows the user to move the armrests to match shoulder breadth Large 27 nylon base for greater stability Hooded double wheel casters Pneumatic gas lift seat height adjustment ) 275 Adjustable Height Yes Package Quantity 1 Arms Armless Folding No Massaging No Heated No Lumbar Support Yes Ergonomic Yes Casters Yes BIFMA ANSI Certified No CA Residents: Prop 65 Warning(s) No Swivel Yes Tilting Yes Arm Type Adjustable UNSPSC 56101500