These Pyrex glass plugs have a blue and white tiger stripe design, which makes them ideal for those into striped designs. The double flare plugs are sold in pairs, but each and every plug is unique due to the nature of the material. We’ll be sure to provide you with a matching set, though. Get your Blue Tiger Glass Plugs in any of the following sizes: 4 gauge (5mm), 2 gauge (6mm), 0 gauge (8mm), 00 gauge (10mm), 1/2 inch (12mm), 9/16 inch (14mm), and 5/8 inch (16mm).