PiercingJ 2-8pcs 16G 9mm-11mm Opalite Stainless Steel Stud Barbell Earrings Illusion Ear Plug Material: Stainless Steel+Opalite Gauge:16G (1.1mm); Pin length:6mm Opalite size:7mm (0G look); Metal flower edge cap size:9mm. Quantity: 4 pairs set Note: 3 sizes (cap size: 9mm, 11mm, 13mm) available in our shop. If 13mm needed, please search with our brand or contact us.