NightGlow Spiral Wrap Properties Photo Luminescent Material Polyethylene Max Operating Temperature 280 Degrees F Min Operating Temperature -40 Degrees F Nominal Inside Dia 9/16 in Color Off White Wall Thickness 1/16 in Length 66 ft Width 5/8 in For Maximum Bundle Diameter 1 1/16 in For Minimum Bundle Diameter 5/8 in Helical Cut Pitch 0.6 in Nominal Outside Dia 11/16 in