Septum Retainer 14g 5/16" 8mm 316L Surgical Steel Staple Shaped Retainer Septum Ring Jewelry 316L Surgical Steel Staple Shaped Septum Retainer. Mirror finished Implant Grade 316L Surgical Steel Staple Shaped Septum Retainer. Material: 316L Stainless Steel Thickness : 14g Size 14g Width 6mm Length 8mm Style: Earring Cartilage Piercing Tragus Ring Helix Conch Nose Belly Nipple