Was purchased as a keychain and is used for self-defense in case of attack. A small, inconspicuous and well usable also for lay people, but highly effective defensive weapon, which paralyzed and the attacked gives the necessary time to bring his opponent directly through immense pain to safety and get help. A good way to adequately against violence to defend, without causing excessive injury to attacker. Highly recommended for women who are also times alone. On the Internet there are dozens of films in which the correct application is shown.
