PURPOSE: To promote health utilizing crystal power possessed by natural stone crystals, by attaching the crystals to proper portions in various health-promoting instruments.

CONSTITUTION: It is intended to serve to promote health by attaching crystals to proper portions in various health-promoting instruments, utilizing crystal power said to be possessed by stone crystals. That is to say, a crystal grinded into small balls, half balls, coin-like flat plates or the like are attached to the portions of a health-promoting instrument being directly in contact with a skin. For example, an exercising instrument for a palm or fingers is constituted by providing to protrude a number of crystal balls 2 in a cylinder 1 having a size enough to get in a palm and elasticity.