The Flint packs enough survival and defensive components to get you through the night or away from danger. In a tool the size of a pencil, the Flint has a built-in fire starter, steel wool tinder compartment, carbide-tipped glass breaker and safety whistle. Weighing in at less than an ounce and measuring 4.30" long, it&';s small enough to be carried on a lanyard, in a pocket or in a pack. Wherever the destination is, it&';s always nice to have a backup plan. Tools: Fire Starter, Steel Wool Tinder Compartment, Carbide-Tipped Glass Breaker and Safety Whistle.