BOLISS Big and Tall 400lbs Mesh Ergonomic Drafting Chair,Tall Office Chair, Standing Desk Chair,Height Adjustable ArmrestSPECIFICATIONS Brand Name: NoEnName_Null Type: Power Tool Parts Origin: US(Origin) BOLISS Big and Tall 400lbs Mesh Ergonomic Drafting Chair,Tall Office Chair, Standing Desk Chair,Height Adjustable Armrest,Lumbar Support,Foot Ring,Swivel Computer Task Chair Black About this item Ergonomic Office Chair: Wide back with breathable nylon mesh. According to the ergonomic waist support design is suitable for people with poor lumbar spine, protect your waist