Color: Colourful (choose by yourself)<br /><br />Package include: 1pc/pack<br /><br />Material: Stainless Steel<br /><br />Size:10*22mm/ Outer Diameter:19mm / Inner Diameter:14mm / Pin:1.8mm<br /><br />Package :in printing paperboard <br /><br />Safety: Made with the highest quality 316L surgical steel free nickel.