ITEM NAME:Tourmaline Healthcare Magnetic Comb Energy Comb Therapy Comb Health Care JR a.imagelink a:hover.imagelink {color:#5a5959;.Combing hair, friction can cause the release of far-infrared tourmaline, negative ion, bio-waves, for a healthy scalp, healthy hair. Main material: natural germanium stone + tourmaline + nano-ceramic powder magnet.