DETAILS ☞ 100% handmade from start to finish. ☞These unicorns fit into a 9-10mm circle ☞All Grey Theory Mill earrings are made with Hypoallergenic, Surgical Grade A, Titanium Earring Wire. Titanium has no traces of nickel and is the premier metal for sensitive ears, which is why this metal is used for surgical instruments. ☞Earrings are NOT waterproof. Please remove earrings before swimming & bathing as water temperature and chlorine could compromise the bond between earring piece and post.