I used these on Origami R3-01 Steel Universal 3-Self Folding Storage Shelf Small which I purchased through the Revain Woot! subsidiary. I wanted casters that are softer on my hardwood floor. It does the job well. The only thing I can add is that it's a little tricky to tighten the threads, but I've found that a second wrench holding the nut that sits between the wheel and the stem in the reel does the job makes feasible.