What is TigerLady?

TigerLady is a brand new hand-held self-defense device inspired by the natural defense of a cat's retractable claws. TigerLady works in two ways. First, holding TigerLady in your hand reminds you to stay alert, and pay attention to your surroundings. Second, TigerLady enhances your ability to scratch an assailant and quickly get to safety. 

Here's an overview from a news network.