NightGlow Spiral Wrap Properties Photo Luminescent Material Polyethylene Max Operating Temperature 280 Degrees F Min Operating Temperature -40 Degrees F Nominal Inside Dia 1 1/4 in Color Off White Wall Thickness 3/32 in Length 66 ft Width 1 1/8 in For Maximum Bundle Diameter 2 3/16 in For Minimum Bundle Diameter 1 5/16 in Helical Cut Pitch 1.2 in Nominal Outside Dia 1 7/16 in