
They are great. Someone recently got me to use them with my elastic thread on the loopers of my serger and the dog quickly ate one after a kid ripped it off. This material is better than the original. The one on the left is this product, the one on the right is the one that came with my serger. You can see it tightening above and below the spool, preventing the line from falling down and getting caught. I replaced the original on both loopers and they work great. I also used it to keep my trophies from falling apart in my sewing box. Thanks very much!

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