I designed the Siren Cartilage Hoop with a delicate row of beads in trinity formation - a representation of past, present and future, and a symbol of strength and creativity. Our Siren Cartilage Hoop earrings are elegantly minimalist - and just as gorgeous by themselves as they are in pairs or trios to build your ear party. These cartilage hoop earrings are made of implant grade titanium for quality - and are 16g (1.2mm), 18g (1mm), or 20g (0.81mm) thick. The most popular size is 8mm (inner diameter). Suitable for cartilage piercings - you can wear them in your tragus or helix. Our Siren Cartilage Hoop is sold as a single hoop - if you'd like a pair, please add two to your cart. Our cartilage hoop earrings are meant to be worn with friends. One earring, infinite possibilities. Make it yours. Specs & Sizing Solid implant grade titanium Gold version is coated in 18k gold PVD Plating 16g (1.2mm), 18g (1mm), or 20g (0.81mm) earring thickness 8mm (5/16"), 10mm (16g/18g only), or 12mm (16g only) in diameter Hypoallergenic and always nickel free