... Manufacture price, OEM acceptable. 1 Material: 316L stainless steel / Pure Titanium /Tungsten2 Plating: IP Gold, rose. Black, coffee, gun, Grantee ... thickness (flexible)6 Bio element: FIR, 99.999% Germaniums, neodymium magnetic, negative ion7 Gauss: 2000-3000 gauss .according to your request ... jewelry box and card.Tianjin Luodakang Technology Co.,Ltd. magnetic therapy necklaces, tourmaline necklaces