NightGlow Spiral Wrap Properties Photo Luminescent Material Polyethylene Max Operating Temperature 280 Degrees F Min Operating Temperature -40 Degrees F Nominal Inside Dia 2 13/16 in Color Off White Wall Thickness 3/16 in Length 66 ft Width 1 3/4 in For Maximum Bundle Diameter 4 7/8 in For Minimum Bundle Diameter 3 1/8 in Helical Cut Pitch 1.8 in Nominal Outside Dia 3 3/16 in