16G(1.2mm) Stainless Steel Circular Piercing Barbells Horseshoe Rings w/Spike Ends (Sold in Pairs) Metal: Surgical Steel 4MM spike ends (3x4MM on the 5/16) Sold in Pairs 16 Gauge(1.2mm). 5/16", 3/8, 7/16" or 1/2" diameters available. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!