DR.ITN FX-P Plasma Machine which has excellent effect on the skin is recommended for use on problematic feet, dry or cracked skin and poor circulation issues. Designed with four wavelengths of light: Green, Red, Blue and Purple. GREEN for odor removal, tired feet and oily feet. RED for dry skin and cellulite removal. BLUE for detox, blood circulation and cell restoration. PURPLE for sterilization. This handy device which generate 30,000 waves per second removes the cause of problematic feet.