Knuckle duster

Reliable knuckle duster

In stock it is made for 21.5 mm index finger in width, so you should scale it for your hand using the formula:
a-your index finger width (in mm)
(a+1.5)/23 x 100%

for example I have 18 mm index finger:
(18+1.5)/23 x 100%=19.5/23 x 100%=0.847 x 100%=84.7%
Don't forget that all hands are different and if it suits bad, you can use file to adjust the size

DISCLAIMER
///Be carefull! It can be dangerous!
It can be illegal in your country!
Don't forget that it is a toy, not a weapon and I am not responsible for injuries sustained due to improper use of this thing!///


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