SPRI Back Stretch and Relax Massager, Inversion Equipment

I was looking for something portable to help keep my back limber and gave this a try. I injured my back at work in my late 20s and am now almost 60. If I keep my back stretched, I can usually avoid the painful situations where my back spasms and I can barely stand up straight. This massager/stretcher is very sturdy and stays in place on my yoga mat. The exercises are well documented and if you go through all of them they seem to work all the supporting muscles in your mid-section. The shape of the massager does stretch your back pretty well. You really have to ease yourself into it though. I'm not able to do one of the exercises at all - probably due to my age. I think a younger person in decent shape could handle all of the exercises. I've been using this every other day and my back does feel better afterwards. The product packaging mentions the Fit for Life app, but when I downloaded it this product was not covered so I deleted the app. I think this is worth the time and money. Just read through the directions and make sure you start out easy and work your way up to a more difficult workout.