TC4 Titanium Knuckle Duster EDC Tool for Personal Security

Material: TC4 titanium alloy
Craftsmanship: stone washing
Weight: 68±2g/85±2g (with pure titanium chain)
Length, width and thickness: 80*48*10mm
Finger hole: 24mm
Functions: necklace charm, self-defense finger ring, bottle opener, keychain, pendant car hanging, etc.