Nick I bought a couple of rolls 7-8 years ago & haven't bought anymore since, I purchased mine from a couple of plastics suppliers I had on my old route. I always have my eyes peeled for potential steam supplies and this has yielded fruit many times....I find people are fascinated in hearing about the intended use for their products , they can see/hear the passion in my steam hobby & often times just give me the items. 😊👍