Nose Piercing "Screw with Prong 8 colours to choose from Material: 316L Surgical Stainless Steel 1/4 Head Diameter in mm: 0.8 or 1/3 L Bar in mm: 10 colors: see photos, Red symbol shown only for example (Please note: For other nose stud shop item number: CBNOSE04 316L Surgical Steel Nose Screw with Prong Set CZ Nicely Prong Set Nose Screws in Two Sizes: 18G and 20G All 316L Surgical Stainless Steel including prong part. Safe for auto clave.