Boss Office Products Black Contemporary Ergonomic Adjustable Height Swivel Task Chair Touchless 4 Individual Set Individual Material Aluminum 4 Individual Set Individual Material Aluminum Fixed or Adjustable Adjustable Hand Tool Type Pipe Wrench Material2 Aluminum Maximum pipe size capacity (in 02 lb Product Thickness (in 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 ) 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