Those infinity hoop earrings are made of surgical grade 316L stainless steel They are smooth,durable,waterproof,non-tarnish and hypoallergenic Gentle on the skin,can be worn for a long time without broken and not turn green Multiple Size Sets 8pcs rings in a set All Gauge--18G(1.0mm) Helix Hoops Diameter: 6mm7mm8mm9mm 18 gauge hoop earrings perforation size suitable for most people
