Products:
Classic Amethyst Far Infrared Heating mats
Stones: Crushed and Polished Natural Purple Amethyst
Surface: 
Sweat Resistant Artificial human-made Red-Brown Suede and Heat Stable PU film for Triangle-Shape Window showing crystals abundant under all top fabric layer
Features:
HEATING, CRYSTAL RAYS, NEGATIVE IONS, FIR (FAR INFRARED)