The complete Enamel Hoop Bundle includes all six enamel hoop beads and our best-selling Endless Gold Hoop for the best price possible! Earring Dimensions: Earring size: 5.5mm diameter 3mm thick Safety & Materials • Hypoallergenic stainless steel with an 18k gold PVD finish designed for sensitive ears• Lab-tested and verified free of nickel, lead, and cadmium (ATS Lab Report #479023)• Waterproof and sweat-proof for everyday wear• Won't fade, flake, or tarnish with proper care• Lightweight and comfortable for school, sports, sleepovers, and travel• Post Size: 20 gauge (.8mm)