3 x 2mm Sterling Silver Plain Ball L Shape Nose Studs Piercing Body Jewellery Material Sterling Silver Ball Size 2mm Pin Length 10mm Pin Gauge 0.6mm thick We advise that you dont wear your nose studs during showering,bathing or in bed with all genuine sterling silver it will oxidise and tarnish over timeucts such as shampoo,soap,make-up ,hairspray,perfume or acidic skin when in contact with the nose ring can speed up the oxidization. If you get a cotton cloth and rub the nose ring it will buff up back to shiny sterling silver.A silver polishing cloth is a good way to keep your sterling silver in top condition.