This double hoop pavé hoop earring has a seamless clicker hinge that is secure.| Lead and Nickel free. Sold as a SINGLE earring, purchase 2 for a pair 14K Gold PVD plated on medical grade Titanium White Zirconia Gemstone Hoop Width 4.5mm(0.18in) Hoop Thickness 1.2mm(16ga) Seamless segment clicker closure #J015-6TG