During the last few weeks of my pregnancy, I became quite uncomfortable and my back ached constantly. Due to being pregnant, I couldn't take medications to relieve my back pain so I opted for a non pharmaucetiucal remedy. I bought this hoping for some relief and boy did it help! It worked well attached to my computer chair so I could sit and surf comfortably while my back got pain relief. It really helped to relieve my lower back pain. I liked this because I could adjust the massaging effect to my desired needs. The heat was also really great and felt wonderful on my sore back. It also helped me to relax enough that I was able to sleep better at night and not wake up barely able to walk because of the pain. This is a great product for those with chronic back pain, a back strain or pregnancy related back pain. I even used this during the early stages of my labor with my daughter because I felt my contractions in my back. Wonderful, wonderful product! I'm so glad I bought it!