Teeter P2 Back Stretcher

This is an awesome product. I gave this three stars for only one reason, the support that goes behind your knees. The support is essential, the other device the "Shark Tank Lady" advertises on TV doesn't have it and it slides up your legs. The problem as I see it is, if you are short, it doesn't fit behind your knees properly. As a result I had to modify my P2 in order to make it fit. If Teeter were a really responsive company they would take this information and offer various lengths of the behind the knees support for smaller adults and children. Amazingly enough not just tall people have back problems and pain. The concept is far superior to the competition, had it fit me properly I would have given it 5 stars. Hopefully Teeter will see this and take my advice into consideration and make an effective device of all sizes of back sufferers.