Grobet Round Blue Wax Wire Assortment ROUND: Pliable, blue, round wax wire gauges 6, 8, 10, 12, 14, 16, 18, and 20 ( 4.11 - 3.25 - 2.60 - 2.06 - 1.60 - 1.30 - 1.00 - 0.82mm). Dimensions: 4"L Melt temperature: 167F (75C)