Wolf King-brass Knuckle Duster Window Breaking Defense EDC

Name:Wolf King
Material: zinc alloy
Specification: Height (fist arc surface to bottom): 73mm Width (bottom bone): 117mm (finger width): 106mm
Thickness (fist surface): 10mm
Weight: about 150 grams

Function: martial arts equipment is self-defense and life-saving, outdoor self-defense and standby defense. It can be mastered almost without special practice. It is a very practical product.