Features: To ignite, expose red core thread and light with any fire starter such as the UST BlastMatch(TM) or UST Strikeforce(TM) Heavy duty 550 utility cord with fire tinder integrated into the cord great for emergencies when backpacking, hunting, camping, and more Create bracelets, zipper pulls, handle wraps, and lanyards for emergency situations Expose red core thread to ignite the tinder core with any fire starter Core threads can be used as sewing thread, sutures, fishing line, and more