Gr8 buy
After having back pain from kneeling and being hunched over, I used it for about 15 mins on low. The low setting is still very strong. My skin tingled some because of the vibration, but i no longer had back pain. First time I actually used it since I bought it. Glad I bought it & gonna use it more often. The vibration is very strong & can be noisy, but its worth it.
Rating: 5 stars