I had heard about these machines and I came across one at the fair. I was hesitant to give it a try, but I am so glad I decided to step onto this wonderful… I don’t know what you call it. But as soon as I stood on that machine, my knees had relief, my back felt better and my sciatic pain went away. I thought this was too good to be true so I left the booth but as I walked around some more, I could not believe how it relieved my pain. I went back and bought one. I use it every day 10-20 minutes, whatever I can spare. I have more energy. I just have an overall well-being that I did not have before, so glad I bought the machine - WOW!!!!