Double Flared Black Tunnels

8 gauge (3mm) 6 gauge (4mm) 4 gauge (5mm) 2 gauge (6mm) 0 gauge (8mm) 00 gauge (10mm) 1/2 inch (12mm) 9/16 inch (14mm) 5/8 inch (16mm) 3/4 inch (19mm) 7/8 inch (22mm) 1 inch (25mm) 1-1/8 inch (28mm) 1-1/4 inch (32mm) 1-3/8 inch (35mm) 1-1/2 inch (38mm) 1-5/8 inch (42mm) 1-3/4 inch (45mm) 1-7/8 inch (48mm) 2 inches (51mm)