One of the easiest to use self-defense products available, the Aircraft Grade Aluminum Silver Kubotan requires no training, doesn’t run out of power, and doesn’t accidentally discharge. The use of the Kubotan is simple, it can be used either to strike at an attacker's soft tissue or to use to swing your keys. Made of heavy duty aluminum, it is nearly indestructible. With the attached key ring, the Kubotan is always ready so you don’t have to fumble around to find it during an attack. The Aircraft Grade Aluminum Kubotan comes with a 90 day warranty.