The 24K gold can beautify the skin, all you need is 2-3 minutes per day, then you will be able to easily obtain the firm and radiant skin you always dream of! The natural current which exists inside the body can be affected by pressure and ageing, which is the main cause for spots and loosed skin. Since the wavelength of gold ions on the skin can regulate and balance the bioelectricity, it activates skin cells, giving radiance and elasticity to the skin. Beauty Bar 24K Gold Pulse for Skincare is 14cm in length and weighs 80g.It's made of brass,aluminium(The T part is gold-plated)and uses AA battery. It's made in Japan and water-proof, so you can use it during bath or shower.