Snake Tunnels Sterling SilverFlesh tunnels for stretched lobes with oroborus snake eating its tail decorating a wide front flare. All the jewelry is made from repurposed sterling silver. The wearable height is 9 mm and the back flare adds 0. 5 mm to the total diameter of the tunnel. Tunnels are sold in pairs. Tunnels range in size from 6 gauge (4 mm) up to 1 and 1 2 inch (32 mm) and are sold in pairs. The thumbnail image shown is size 16 mm 5 8 inch. All our tunnels are made to