Shark-Double Finger Brass Knuckle Duster Beer Bottle Opener

Name: Shark knuckle bottle opener
Material: zinc alloy
Weight: about 76g
Size: palm width 75mm, height 67mm, allegation diameter: 21mm

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.