A revolutionary new self-defense design offers a practical alternative for personal protection. Any direction that you strike your opponent whether it’s a straight punch or hammer fist will be powerful. Stun and stop your attacker with great force. Easy to use and deploy in a moments notice. Designed to help you to deter physical attacks and assist in evade and escape options. Grab and maneuver an aggressor while maintaining control and a secure grip. Develop confidence in your empty hand striking skills. Also seconds as a wrench with its 4 most standard nut sizes. Protects you hands if you ever run into the rare situation of needing to punch out glass. Buy the gift of safety for your whole family now.