Material: 316 stainless steel, TA2 titanium are also avaliable Nickle free &Lead free. Magnet: Can put magnet, nano stone, infrared ray-wave energy, negative ion, germanium Finish: High Polished Size: #4---#13 Plating: IPB plating, no plating or IPG gold plating are also avaliable Stone: CZ stone Stone is avaliable in color, material and style. Minuim Order: Each size for 50PCS OEM or ODM are welcome. Package: Oppbag(inner)+Carton(outer) Term of Payment: T/T(30% deposit to confirm your order, and pay the balance after shipping. Logo: Can engraved your own logo Love our products, love yourself.