Heart Attack Self Defense Keychain Pink. Never again will you feel powerless; with the Heart Attack Key Chain on hand, you can confidently choose not to be a victim and fight back in an altercation. It's affordable, compact and easy to use. This small 3.5 inch plastic ABS self-defense tool fits conveniently on your keychain for quick access in moments of danger. When not in use, the Heart Attack is easily hidden in your pockets, purse or bag, so you can always be prepared. When you need to protect yourself, simply place it between your fingers and punch! The durable plastic construction provides a firm grip and won't slip even during vigorous activity. Features: - Compact size, fits in palm of hand. Easily fits in pockets and purses. - Key ring included - Made of durable ABS plastic - Available in 3 colors: Black, Pink and Purple.