What's inside this mat? Non-Toxic External Casing Natural Gemstone Layer Photon Light Layer Functional Layer EMF-Filtering Copper Mesh Heat Distribution Heated Wiring Layer Thermal Foil Insulation PEMF Coil Layer Non-Toxic External Casing Mesh and durable synthetic leather Learn More Natural Gemstone Layer Composed of amethyst, jade, and tourmaline Learn More Photon Light Layer Delivers 660-nm photon lights Learn More Functional Layer Clay Layer maximizes negative ion output Learn More EMF-Filtering Copper Mesh Prevents any EMF emissions Learn More Heat Distribution Distributes heat evenly across mat Learn More Heated Wiring Layer Heats to gemstones to release natural far infrared rays Learn More Thermal Foil Insulation Prevents heat from being conducted downwards Learn More PEMF Coil Layer Copper PEMF coils Learn More