“I sent mine back as the box was ripped and it was clearly a used item. But even if it'd been brand new as it should've been I'm not sure I'd have kept it because, while the stretch it gives felt mostly good, the foam padding doesn't go to the edges, so when your body squishes it down while rolling you immediately feel those hard plastic edges. No thanks.”
“These are labeled for yoga, but I have seen them advertised elsewhere for helping with back pain. The small one is great for your neck and the medium and large for your back. I can see these being great for stretching and helping with flexibility also. If you are not very flexible, it takes a little bit of time to get used to them, but overall they work well. Much better value than others I have seen advertised for almost $100.”