316L Surgical Steel Double Coil Twistunique From Each Threaded Ball To Its Curved Interior This Coil Style Twist Is A Funky Style Of Jewelry Perfect To Hug The Ear And Stand Out From The Crowd. Constructed Out Of Pure 316L Surgical Steel And Polished To A Mirror Sheen, This Funky Metal Jewelry Features A Coil Like Design In 16Ga, 8Mm Steps, With Matching 4Mm Precision Threaded Balls.Thickness : 16Ga / 1.2Mmlength : 5/16" / 8Mmball Size : 4Mm X 4Mm