0 Gauges Stainless Steel Crystal Clear with Glitter Anchor Screw Fit Tunnel 8mm - Sold As a Pair 1 Pair of Tunnels size 8mm (0 Gauge) 316L Surgical Grade Stainless Steel Tunnels. 1 Pair of Tunnel with Glitter Anchor and Crystal Clear Rim. 0 Gauge Double Flare Screw Fit Tunnels.