I love this product! I was skeptical at first, but it really works. This knee brace is made of tourmaline, a self heating fabric and has magnets for the therapy. It seems very new age but after using it I'm convinced. I had to use my knees a lot lately because of my back fusion surgeries. In my 20's I had arthroscopy on both my knees, removing a lot of the medial meniscus on both knees. So I am a prime candidate for knee problems.
After trying it on the first time, I did bit feel anything for the first 20 minutes, but then it started to heat up. I left it on too long and my knee was on fire for a while after that. I was told not to leave it on do long, but instead take it off when the heat started to feel very comfortable.
It does work. The pain I had was gone. I was very surprised. And it stayed gone for a while. I was very happy with this brace and I think you will be too. It's great for arthritis, joint pain, meniscus tears, inflammation, etc.
It is available from Amazon.com for $14.95: http://amzn.to/1Nahv7M.