Has anybody here used these? I have used bicycle innertubes on the grips of my M-57 to help secure the grips, but they are flimsy and seem to stretch over time. I thought I would try these. They are like innertubes on steroids. So far they seem to work pretty well, although they are a bit pricey at $10. You get 3-4 inch strips, good for a few grips depending on how you cut them.