Titanium Alloy Knuckle Duster Window Breaker Bottle Opener Self-Defense Gear

Material: TC4 titanium
Size: 67.8mm * 46.8mm
Finger hole: 23mm * 33mm
Thickness: 8mm/18mm
Process: stone washing/sandblasting

TC4 titanium alloy casting is high-strength and corrosion-resistant, light and portable. An optional stone washing and sandblasting process, a thickened version for enhanced practicality, combines bottle opening and window breaking for self-defense.