Micro Nipple Barbell and Horseshoe Ring Set 16G 10mm. Surgical Steel Measures: 16g, 3/8" (10mm) Nipple Barbell 10 mm with Front Facing Aqua Cubic Zirconia. This pack comes with 2 Pairs. DELICATE LOOKING: Brilliant Outlook; Vibrant Color; Well Setting and Stay in Place. COMFORTABLE TO WEAR: Well Priced Piercing Set; With Expensive Look; Comfort Fit Design; Easy to Put on and Won't Easy to Slip Off. Cute and Stylish Design, Firm and Easy to Use. Adopted Simple Design, Smooth Surface.