*The 650 Series Holds Large Liquid Gas Cylinders Up To 20” In Diameter.* The Newly Designed Single Hook Adjusts From 50” To 60” In Height Which Makes It More Versatile For Handling A Variety Of Cylinder Types. *This Style Comes With Swivel Casters For Easier Maneuverability. *Also Available With 12” Pneumatic Wheels In Front. *Model Number 65029-51.