Steel Window Break Knuckle Duster Self Defend Opener

Size: 65mm*60mm*12mm
Material: steel
Technics: surface silver titanium plating
Weight: about 160g

Made of solid steel with integrated precision carving, it can be used for outdoor exploration, bottle cap opening, car window breaking, and other purposes. It is a good defense tool and can also be used as a decoration to hang on pockets and backpacks.