Add some bling and personality to your piercing with this gold simulated opal stud. It's shiny enough to make a disco ball jealous. Made in responsibly sourced 14K tube yellow gold for everyday wear. Stones: Lab-Created Opal Stone Size: 3 mm Gauge: 18 Tube Length: 5/16" Fits cartilage piercings: helix, forward helix, tragus, conch and flat