The inventor of this product is Dr. Stone. He is an orthopedic surgeon specializing in sports medicine. His practice is on Buchannan across from the Marina Green in San Francisco.
I had the pleasure of his services on my right foot @ 5 years back. I had a large problem with my heel and Achilles tendon. He did the work and it's really better than new. I can't speak highly enough about his abilities.
My insurance plan orthopedic surgeon told me to "live with it" - what a dick! I couldn't walk. Never go back to that quack.