This women's self-defense anti-wolf metal spike stick keychain is made of high hardness zinc alloy. Anti-wolf tip design front sharp tapered tip, can effectively deter or repel the attacker, creating the opportunity to get away, small as a regular keychain, hanging in the bag or waist inconspicuous, to avoid attracting attention, high-strength impact resistance, not easy to break, durable and rustproof, long-term use of non-deformation, optional broken window tail cone (customized models), the emergency broken car window glass to escape. Designed for women's safety, set daily keychain and emergency self-defense function in one, suitable for night travel, living alone, travel, outdoor activities and other scenarios, hidden and portable, can quickly counterattack in case of danger.