This outdoor self-defense keychain set includes a variety of self-defense tools such as a stun gun, pepper spray, key knife, window breaker, pen knife, alarm, knuckle duster, whistle, metal baton, cylindrical wallet, and pom-pom ball, meeting self-defense and emergency needs in various scenarios. Combining multiple self-defense tools, it is suitable for women, outdoor enthusiasts, travelers, and other groups who need immediate personal protection, ensuring a quick response in emergencies to safeguard themselves from harm.