This handy massage roller replaces a regular bouncy ball that I use for trigger point therapy. Why? First off, the option for hot and cold is very welcoming. Second? I usually use a regular ball up against a wall to hit my trigger points. The issue with using a ball is that it easily falls if you move out just a little too much. Doing it this way with the case is helpful. But, since you can use this either way, with or without the case makes this even more useful. It comes with a nice velvet carrying bag. I will note that the directions on amazon say you can put this in the microwave. Being that this is stainless steel metal, I honestly am not real sure about that – I’m not willing to test that theory and mess up my microwave. What I do instead is put the ball in a bowl of very hot water for a bit – works like a charm and feels heavenly.