Titanium Knuckle Duster Open-bottle Boxing Self -defense Tool

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

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