... Structure. Thermostable, oxidation resistance, and corrosion resistance. Other Brand:Wood plate, cannot bear heavy body, no damp-proof, bad mothproof, ... weak, proteiform. 2. Device of FIR heatingMaterial: carbon fibre heating plate,wavelength:2.5~13.5μm4~16μm can be ... to head, conform to Traditional Chinese Medical Theory—YANG(upper part) & YIN(lower part) balance.Jade roller goes along the back one ...