The only non-lethal self-defense tool that can be used in shoes. It is suitable for the upper part of the tongue and between the laces, providing a simple, light and non-lethal self-defense tool with a devastating effect. Regardless of the level of self-defense training, anyone can use it. Quickly kicking the attacker's arms and legs can help you avoid dangerous attacks; even a simple kick of the calf will make the attacker rethink the wisdom of choosing you as the target. Ideal for anyone who needs a lightweight, inconspicuous and concealed defense tool. There are a variety of coordinated colors to choose from. Buy two for added protection