it's no secret we love a good hoop. they're so simple that they go with all the outfits, but they make us feel a bit more put together and sophisticated. this pair is is 18k gold filled- meaning you never need to take them out! they will not wear when exposed to water or moisture and are tarnish resistant. hypoallergenic. they are super lightweight and are great if you have multiple piercings. this hoop is a bezel cubic zirconia c hoop offered in two sizes. 12mm x 2mm or 16mm x 4mm. hypoallergenic and nickel free.