When you're out in the elements at night there are enough hazards to navigate without worrying about losing sight of what you've got tied down. The ShineLine Reflective Cord is 50' (15.24 meters) long and is perfect for setting up tent guy lines, hanging bear bags, boating, tying up tarps or shelters, and being able to see where it's at when you're done. Made of sturdy nylon with a woven reflective strip that reflects brightly when illuminated with light, the ShineLine Reflective Cord increases safety for you and the people around you on the trail, campsite, water, and highway.