If one is good, then 3 is better! This adaptation on the original kubaton key chain design, give you 3 pointed self-defense edges right in the palm of your hand.

Starting in Japan and originated by the man who trained their police, the kubotan is a non-lethal self-defense tool that looks harmless but packs a hard hit. The kubaton is legal and entirely unregulated. To most people, the Kubotan is little more than a nondescript key ring. However, the Kubotan remains an effective self defense installment. It really can save your life.