The Thera Cane looks like it straddles the line between being a legit medical device and a “back massager (wink wink)”. It’s basically a cane- it has two strategically placed projections and 6 treatment balls. The Thera Cane allows you put direct pressure and massage yourself in those hard to reach spots on your back shoulders. On the other hand, it’s nothing but a $30 curved stick. You decide.