You may never need it, but if you, you'll be glad to have The Pocket Survival Pak. It's a compact collection of survival tools that's perfect for adventurers of all types. At under four oz., you will barely know it's there. Just 3.25 x 5 in, it fits easily in pocket or bag. Includes the Rescue Howler ultra light, but extremely loud whistle, Rescue Flash Signal Mirror visible over 20 miles, 20mm Survival Compass, Spark-Lite waterproof military firestarter, Tinder-Quick to get the fire going. Duct Tape---you know how useful that can be, scapel, military spec utility wire, magnifier lens, heavy-duty nylon thread-50 feet, braided nylon cord, fish hooks, and more. Also includes an illustrated, waterproof survival instruction guide.