... less allergic reaction than many other types of metal jewelry.It is non-porous,which means ... -weight ratio.It is a light,strong metal,with low denstity that easy to work, ... alloy steel,but are 43% lighter.Place of origin:ShenzhenBrand Name:OumeideModel Number:GP0146Width:4mm,5mm ... of payment:T/T,westunionthe methods of delivery:UPS,FedEx,DHLaccept customer design,and make on custom-made OEM/ODM Metal ...