Virco N2 Series Height Adjustable Mobile Task Chair (Virco N260GC)

N2 Series Adjustable Height Mobile Task Chair, Plastic Seat, Adjustable Gas Cylinder For 15-1/2" To 20-1/4" Seat Height, Chair Swivels 360, Five Dual-Wheeled Caster Base With 2" Hooded Swivel Casters.Flexible Plastic Seat ShellThe one-piece shell consists of injection molded polypropylene.Color is evenly dispersed throughout the plastic for a clean even appearance.The face of the shell is textured.The shell has molded reinforcing ribs for strength.The shell is permanently attached to the frame with six unexposed steel rivets.