NightGlow Spiral Wrap Properties Photo Luminescent Material Polyethylene Max Operating Temperature 280 Degrees F Min Operating Temperature -40 Degrees F Nominal Inside Dia 2 3/8 in Color Off White Wall Thickness 5/32 in Length 66 ft Width 1 5/8 in For Maximum Bundle Diameter 3 13/16 in For Minimum Bundle Diameter 2 9/16 in Helical Cut Pitch 1.6 in Nominal Outside Dia 2 11/16 in