Highlander Guy Lines Glow In The Dark. Avoid tripping in the dark by using these guy lines and runners on your next camping trip. Instructions: The cord is for re-shock cording poles. The metal wire can be used to push or pull the cord through the sections. The washers can be useful to tie off the ends of the cord to stop it slipping back. Spare guylines for tents and shelters Extra long at 4m Fluorescent colour so they can be seen in low light Material: Nylon Braided Cord Weight: 80g Size: 4 Guylines. Each is 4m in length