A small pepper spray unit allows you to carry self defense spray with you wherever you go. You don't have to worry about being in a situation where you wish you had remembered to bring pepper spray with you.
By keeping this unit on your keychain, you will be protected any time you have your keys with you. Always remember to carry your keys in your hand when leaving to and from your vehicle and be prepared to use the pepper spray. Never leave your keys in the bottom of your purse or in your pocket while walking to and from your vehicle. Self awareness will keep you safe. But pepper spray gives you the peace of mind, just in case.