Brand new and unused. No scratches or dents etc. Designed for plumbers using Turbo-Torch welding and soldering kits. ("B" Acetylene tank). The opening is 6 1/2" diameter. Overall height is 28". These are expensive (well over $100) and hard to find but I reduced the price to only $40...less than 1/2 my cost. I have a dual wheeled cart for Oxygen and Acetylene bottles so I never used this one. Thanks as always, Thomas & Family