I was told that someone who couldn't walk was able to walk with this. It's rubber that acts as a substitute for muscles. The retail price is 33,000 yen. I bought it for my mother, but she said she doesn't need it because it's difficult to put on. Since I, who have no pain, felt nothing when I tried it, I considered keeping it for the future, but I will give it to someone who can use it now. Thank you very much ^ - ^