I bought this rod, reading an article on the benefits of its use by a physician, and I found it very convincing, my husband suffers from back pain and shoulder, I bought it with the book 'remove pain through technical points tigger', he would have served on, and believe me if you want it made him good quickly, a pain he has for months at a point the back, and the fact of using the cane, this has relieved him quickly, I find it wonderful to be relieved in this way, even the physio has not relieved in this way. do not hesitate to take the cane and the book to help you, you do not imagine how much we point tigger on our bodies!