The Hard Self Defense Tiger Knuckle is the most effective self defense weapon. It is intimidating enough to scare away attackers in some situations and also can be use for emergency purposes. FEATURES Strong and Sturdy They are made of strong metal,fist-loadingweapon, so you can make some pretty heavy strikes. For Emergency Purposes The tiger knuckle is best for emergency purposes. To defend your self while strolling alone on the streets, and if you accidentally lock your car door. Survival Gear This tool is great for outdoor activities such as hiking and camping. It has a sturdy and compact design that you can add up to your survival gear. SPECIFICATIONS Dimensions: 59mm x 114mm Weight: 102g Material: Zinc Alloy PACKAGE INCLUDES 1 xHard Self Defense Tiger Knuckle