Helps me to stretch out my lower back
This device enables me to stretch out my lower back and it's helping to relieve my lower back pain.  It's strong enough to support me as I lay across it on the floor. No worries at all that it will collapse on me.  What most kept this from being a five star product was the difficulty in setting it up.  It was a bit of a struggle to get it into the easiest positioning slot. Perhaps that same inflexibility is what makes it so strong but I suspect many people will struggle a little bit initially, especially if they are setting it up for an even greater arc.  In addition, the instructions  could be more thorough, particularly as far as showing the proper form during use.  Bonus: the device comes with a carrying bag and  a spiky massage ball, two nice additions.  All-in-all a useful device that seems to be helping me.  A little better instruction for use and set-up and I'd give it five stars.
Rating: 4 stars