NightGlow Spiral Wrap Properties Photo Luminescent Material Polyethylene Max Operating Temperature 280 Degrees F Min Operating Temperature -40 Degrees F Nominal Inside Dia 2 in Color Off White Wall Thickness 1/8 in Length 66 ft Width 1 5/8 in For Maximum Bundle Diameter 2 15/16 in For Minimum Bundle Diameter 2 1/16 in Helical Cut Pitch 1.6 in Nominal Outside Dia 2 1/4 in