The Heart Attack Self Defense Keychain is not your ordinary keychain as it is actually a self-defense weapon. Put this weapon on your fingers, and you have an instant personal protection weapon that can deliver a devastating punch into your assailant. The punch is further aided by the sharp edge of the Heart Attack self-defense keychain. Carry this lightweight, compact, stylish personal defense weapon instead of the bulky other weapon options. When not needed, the Heart Attack self-defense tool can be a pretty decorative keychain.