Zysta 8pcs 16G 6-12mm Inner Hoop Stainless Steel Tragus Helix Earring Material: Stainless Steel Gauge: 16G ; Inner Diameter:6MM;Exterior Diameter: 8MM Little Ball Size:3MM The inner diam is 6MM(1/4"), so it's only used for helix and tragus. Package Included:8pcs (2pcs for each color).