MediCrystal Classic Amethyst FIR Mat

Gemtones: Crushed and Polished Natural Purple Amethyst Surface: Sweat Resistant Artificial human-made Red-Brown Suede and Heat Stable PU film Features: HEATING, CRYSTAL RAYS, NEGATIVE IONS, FIR (FAR INFRARED) Sizes:   20"x32" (50x80 cm) Mini  20"x40" (50x100 cm) Chair Mat  22"x48" (55x120 cm) Compact Mat 24"x59" (60x150 cm) Midsize Mat 24"x72" (60x180 cm) Full-size Mat 31"x72" (80x180 cm) Professional Mat  39"x75" (100x190 cm) Single Size Mat  75"x79" (190x200 cm) King Size Mat  Voltage:  Please make sure you buy the right voltage! Details: Made with 100% natural and untreated 2-7 mm tumbled and polished amethyst crystals sourced from Brazil or Uruguay.  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 of 4-16µm with energy peaks at 6 and 12 microns to penetrate tissues up to 8 inches deep. The set includes a mul