Gold heart cartilage piercing, cartilage earring, conch or helix piercing. 316L surgical steel plated gold barbell piercing is 16 gauge with a 1/4" (6mm) or 5/16" (8mm) long post. The heart earring is internally threaded and unscrews from the post. The rose gold heart is 3.5mm x 3.5mm. All orders arrive in a gift box. Choose your color bead, which slides over the post and can be worn with or without the bead.