00G(10mm), 1/2" (12mm), 9/16" (14mm), 5/8"(16mm), 18mm, 20mm Gauge Kit (24 Pieces). This kit includes pairs of tapers and Tunnels Plugs in all the following sizes: 00G (10mm), 1/2" (12mm), 9/16" (14mm), 5/8" (16mm), 3/4" (18mm), 7/8" (20mm).