Sold individually, purchase 2 for a pair. Internally threaded double flare black PVD coated stainless steel tunnel. Looks like double flare when in the ear, but as easy to put in as a threaded tunnel. This threaded tunnels has a 8mm wearable surface.
7/8" (22mm), Black PVD Coated, Double Flare, 316L Surgical Grade Stainless Steel, Internally Threaded, Sold Individually