These flairs, made in gray and white colors, are used in wall, ceiling, steel construction and concrete installations. Being halogen-free, in the event that these flairs burn, the gas released is not harmful to humans. Code Diameter Inch Packaging Quantity Packaging Form EK-0327 16 mm 1/4 3.000 ad. Sack EK-0328 20 mm 1/2 2.000 ad. Sack EK-0329 25 mm 3/4 1.000 ad. Sack EK-0330 32 mm 1 750 ad. Sack .