*Durable: sturdy steel construction and 360 Degree swivel casters will last for a long time. Comfortable: Dia 11. 5 Thick and absorbent vinyl-protected multi-layered padding maximizes protection and comfort. *Adjustable: easy Pneumatic gas-lift height adjustment from 15. 3 To 20. 2 Height range and rated up to 300 lb. Maximum capacity single-hand lever control. *Functional: built-in Dia 16. 5 Tool tray adds versatility widely use in garage workshop Office and much more. *Assemble: you can find the detail instruction manual in the package. It is easy for you to assemble the work Stool in only 5 steps. Easy pneumatic gas-lift height adjustment from 15.3 to 20.2 height range and rated up to 300 lb.Via a simple hand lever leaving you more time to comfortably focus on your task at hand. We re professional in this field for mechanic tools such as roller seats tool chests workbenches and so on. We are a trusted manufacturer in high performance tools for home and professional use. We hope you can enjoy