Acupressure Slipper

Acupressure Slipper
What is the name of the shoe Japanese acupressure skin on the inside?

People use these around the house and says they are good for your health because they Massage Your feet with these shocks. What are the names (in Japanese or English)?

Healthy sandal is called in English. In Japanese called "Kenkoh sandal." (My brother just bought a couple of them.) "Kenkoh" means "health" in Japanese, and is available in a supermarket and elsewhere in Japan or in a place where Japanese Thermal is, or can be found in a Japanese coin shop. It costs about $ 1 – $ 10. They have small bumps on the sandal to fix your feet, giving him a little comfortable (?) massage. You can try, anyway!