ThermoGem 3-Gems Bio-Stimulation FIR Mat

Gemstones: Natural Purple Amethyst, Black Tourmaline, Green Jade, and Ceramic Tourmaline Hexagons Surface: Durable Mesh Fabric and high-end human-made artificial tan eco-leather and suede  Features: HEATING, CRYSTAL RAYS, FIR (FAR INFRARED), NEGATIVE IONS, BIO-STIMULATION PHOTON MONOCHROMIC RED LIGHT, MAGNETISM (1-30Hz) Sizes:   20"x32" (50x80 cm) Mini  20"x40" (50x100 cm) Chair Mat  22"x48" (55x120 cm) Compact Mat  24"x60" (60x150 cm) Midsize Mat  24"x72" (60x180 cm) Full-size Mat 32"x72" (80x180 cm) Professional Mat  40"x76" (100x190 cm) Single Size Mat  Voltage:  Please make sure you buy the right voltage!  The Power Input is either 110-120V/60 Hz for North America and Japan or 220-240V/50 Hz for the UK, Europe, Asia, Australia, Russia, and most other areas. Details: The warm stones naturally release negative ions and far infrared deep impact heat, which provides a range of health benefits. Amethyst concentrates crystal rays in the most absorbable wavelength range