Material: Made with Copper, durable and hypo-allergenic. Gauge: 0g(8mm), 00g(10mm), 1/2"(12mm), 9/16"(14mm), 5/8"(16mm), 3/4"(19mm), Please choose suitable size. Color: Golden, Silver. Ear expander Type: Semicircle Vintage Ear Plug Tunnel. Occasion: Party, Wedding, Birthday, Anniversary, Gift, Daily Wearing Send it as a Great gift or keep it as an lovely collection. Package Included: 1 pair ear tunnel, Please choose pattern&size that you want.