Don’t leave town without it! The SL3 features a razor sharp blade and loud emergency signal whistle plus a premium magnesium alloy fire starter. use the SL3 blade back to create an intense shower of sparks at over 2000. The fire starter will even spark when wet! At just 2.7 oz its a compact survival kit that is perfect for a wide range of uses and one that deserves a place in your backpack or off-road vehicle.