Product Information - Product Type: Straight Barbell in 316L Surgical Stainless Steel - Externally Threaded Steel Ball Top - Gauge Size: 16 Gauge (1.2mm) - Wearable Barbell Length: 6mm - Opal Flower Diameter: 7mm Tragus, Triple Forward Helix, Cartilage, Conch, Labret, Medusa, Lip, Constellation Stud, Barbell, Piercing , Jewelry Jewellery, 16 Gauge 16F Opal Flower