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Needed some largish diameter tubing (65mm) for a project in the garage. I had a couple of Toner cannisters from a Xerox copier about the right diameter, 65mm and 75 mm OD. Length about 300 mm. Once you hacksaw them open and clean out the residual toner you end up with a very light 1mm wall rigid plastic tube. I won't tell you (yet) what I'm building with mine but could be useful for sight scope bodies, 60mm or 70 mm lens. Just watch out for the toner, it's totally nontoxic and harmless but messy !! ( I used to be the materials safety person for this stuff so I know )
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