NightGlow Spiral Wrap Properties Photo Luminescent Material Polyethylene Max Operating Temperature 280 Degrees F Min Operating Temperature -40 Degrees F Nominal Inside Dia 3/8 in Color Off White Wall Thickness 1/16 in Length 165 ft Width 3/8 in For Maximum Bundle Diameter 11/16 in For Minimum Bundle Diameter 3/8 in Helical Cut Pitch 0.4 in Nominal Outside Dia 1/2 in