There were many considerations taken when coming up with what exactly would be put on each self defense keychain. The personal alarm is something that is loud enough to draw attention to yourself to potentially scare away an attacker. It can be used when you feel like you are receiving unwanted attention. The alarms are great for children to carry around as well. Children who are separated from their parents are taught to stay where they are and make lots of noise to attract help. For children who would prefer to not scream for help, the alarm gives them a way to attract attention from someone who can assist. There is also an LED light attached to the alarm that is useful in a variety of situations where light is limited. The window breaker doubles as a seatbelt cutter. This tool is used to break windows. It is recommended to keep this on your keychain where it is easy to access. The seatbelt cutter portion can be used not only cut seatbelts but also anything else you can fit in the provided space. The most obvious self-defense tool is pepper spray. The pepper spray on your self-defense keychain has a locking feature so it won't go off unintended. Pepper spray is a great tool that could detour a person from harming the holder, but also in situations they are receiving attention from an unwanted animal. It's a great way to temporarily injure someone without being lethal. Self-defense kitty claws are intended to be worn on your hands when you feel unsafe.