Tourmaline ball medical stone ball anion ball

Tourmaline ball, also known as tourmaline ceramic, tourmaline mineralization ball, tourmaline ceramic ball, is the use of tourmaline, high quality clay, a new material other base materials through molding, sintering obtained. English name: Tourmaline stone ball. The main material: tourmaline, high-quality clay, other basic materials. Diameter of about 3 ~ 30mm; color gray and black, yellow, red, white several.