Keychain Unit. 4 1/4” overall. Clear composition keycap holder with keyring. Contains 0.75 oz of 15% oleoresin capsicum pepper spray. 2,000,000 heat units – bear spray formula. Sprays up to 10 feet. Can be used on multiple assailants. Immobilize assailant for up to 30 minutes. Works better than tear gas. Used and recommended by law enforcement. Hang packaged. Made in U.S.A.