Your keys are with you no matter where you go and there's always that possibility of danger. With your keys attached to the Kubotan, you now have an effective and easy-to-use means for self-defense. Created by (10th Dan) Karate Master Takayuki Kubota, the Kubotan is used for suspect control by law enforcement agencies world-wide. Illustrated instructions are included and no special school is necessary for basic techniques.