I bought a different grit from Jet for my 25" sander and they were fine. The 36 grit ones didn't fit properly. I had to cut them off as they were too long and overlapped on both ends, catching other grinder components. For the price not impressed with the lack of quality control. I had to throw one away as I messed it up trying I cut it off with a utility knife while it was on the cylinder. Should have sent them back but obviously wanted to use them on a project same day rather than waiting a week for a replacement. Disappointed. I'll probably just buy rolls and start making my own and save money in the process, at least I can control the quality.