Shocking Knuckle Duster Thunder Bottle Opener Window Breaker

Size: 71mm * 47mm * 12mm
Material: 3CR13
Process: silver-plated titanium on the surface
Weight: about 148g

This is a multi-functional single-finger knuckle with a bottle-opening function. It is equipped with a rope buckle, making it easy to carry and protect yourself in an emergency.