Highly reflective guyline cord for tarps, tents, ridgelines, and anything else you can imagine! 90 ft (27 m) of 1.5 mm reflective sleeved Spectra guyline cord, the same cord that is included in our Guyline Kit. This line glows nice and bright when even a small light is used near them, because nobody likes tripping over their lines in the middle of the night. 90 ft (27 m) of cord weighs approximately 1.7 oz (48 g).