Additional Details ------------------------------ Product description: One brand new pair of Studex System 75 hypoallergenic, silver colored surgical stainless steel ear piercing studs with backs. These earrings are adorable mini 3mm blue green December birthstone studs in a pronged setting. Earrings are also easily removed from the self piercing cartridge for wear in already pierced ears. Perfect for every-day use! They come to you packaged in a sealed, sterilized blister package fresh from the Studex System 75 factory and loaded in a self piercing cartridge. Thin 20 gauge posts like regular earrings. Made in the USA. Studex System 75 offers the safest ear piercing available today. Every piercing stud, hoop and instrument meets or exceeds all US FDA and EC European standards and regulations. All Studex System 75 studs and hoops are hypoallergenic, nickel-safe, lead-, cadmium and cobalt free. They meet or exceed European Union standards and FDA regulations (U.S. Food Drug Administration). Color may vary slightly due to the color calibration of each individual monitor. The photo does not show actual size, please refer to description for size details.