Classic Knuckle Duster - Bottle Opener Self-Defense Gear

Material: 7075 aviation aluminum
Size: 111mm*65mm*15mm
Finger hole: 28mm*23.8mm
Weight: about 110g

The use of aviation aluminum CNC one-piece molding, lightweight and sturdy, built-in bottle opening slot design, classic and practical, easy to carry, is a suitable for going out with a defense tool