Metal This triangle septum ring is made of ASTM F136 implant-grade titanium – the kind used in surgical implants. Implant-grade titanium is a highly preferred material for body jewelry as it is durable, hypoallergenic, non-corrosive, safe from contamination, and adaptable to our bodies. Details Materials: Implant-grade titanium; Metal color: Silver, gold, black; Thickness: 16 gauge (1.2 mm); Diameter: 8 mm, 10mm. Free Shipping & Free Returns This triangle septum ring is made with love and will ship within 1-5 business days via USPS, DHL, FedEx, or any local carrier depending on the address you provide. At the moment, we are proud to say that we offer free shipping on this product. Each order includes real-time tracking details. Read more about our Shipping Policy. We want you to be 100% satisfied with your purchase. Items can be returned within 15 days of delivery. Read more about our Refund Policy.