This cast aluminium clamp is to hold a tank of compressed gas upright in a work shop or lab. The clamp attaches to a workbench and there is up to a 1 1/4" wide strap (common tether straps are good for this chore) that goes through the clamp and around the tank to be held in place. The clamp can be screwed to the edge of a bench if the location is such that the tank is in a high traffic area. Located west of Ottawa, near Almonte. If you're reading this ad then the clamp is available. I try and pull my ads the day a deal gets completed. If you are not local to the Ottawa area, I'm up to speed on shipping things and the clamp could be mailed to you. If you want to ensure you hear from me, please include your phone number. I have had ad replies with bad e-mail address's and not been able to get in touch with some buyers. Thanks for looking.