JOVIVI 2pcs 18g Stainless Steel Spike Round Hoop Circle Shield Nipple Bar Rings Body Piercing Jewelry Including a black Velvet Bag named JOVIVI on it. High grade stainless steel is highly scratch resistant, won't mark your skin or tarnish over time. Pin Gauge:18g(1.0mm), Spike size:2mm or 4mm. Pin Length:16mm. Inner Diameter:12mm Quantity: 1 pair(2pc)