The UST ParaTinder Survival Zipper Pull makes all the other paracord trinkets look like one-trick ponies. That's because this 550-pound-rated cord contains a red tinder thread in the core. Unwrap it, spark it, and you've got an instant flame. And that's on top of all the regular uses of paracord (fishing, sutures, fishing line, lashing, and more). Each zipper has about 90cm of tinder thread inside.