Boss Office Products Black Contemporary Ergonomic Adjustable Height Swivel Task Chair Surface Mounted Locker the Bottom Hold is recommended the Bottom Hold is recommended for residential 73 Frame Type Frameless Towel Bar No Product Weight (lb Collection Name none Color Finish Family Black Manufacturer Color Finish Black Back Material Upholstered Seat Material Upholstered Frame Material Metal Wood Species Poplar Finish Type Black Style Contemporary Trend Modern Type Task Number of Casters Wheels 5 Maximum Seat Height (Inches) 22 Minimum Seat Height (Inches) 18 Seat Back Height (Inches) 23 Seat Back Width (Inches) 19 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