Fire tinder added as the 8th inner strand to standard 550 nylon para-cord. The 8th strand is color coded, waterproof, and is easy to ignite. When you need the fire tinder, remove the inner strands, light just like any fire tinder and build your fire. After the inner strands are used, the outer shell can be reused like before, for lanyards, key-chains, zipper pulls, or emergency lashing. 25 ft. length.