This Flat Back single stud is set in 14K Gold and a White Sapphire gemstone with prong settings. Worn on helix, forward helix, flat, tragus, conch and upper lobe piercings.| Lead and Nickel free. Sold as a SINGLE earring, purchase 2 for a pair 14K Solid Gold White Zirconia Gemstone Post Length 6mm, Thickness 1mm(18ga) Push pin flat back closure with 3mm disc #JS025-2G