The Body Back Buddy Trigger Point Massager is our most popular design and reflects years of feedback from massage therapists, chiropractors, and physical therapists. With 11 therapy knobs, the Body Back Buddy stimulates in between muscles and pinpoints trigger points for a more finely-tuned treatment. Engineered to be lightweight, strong and easy to use. Combines the best of the Body Back Buddy Trigger Point Massager features for those who want the ultimate self massage tool. Overall length is 25 inches. Comes with a free 12 page instruction booklet.