Plastic Knuckles Destruction Test

Teen Brings Electric Brass Knuckles To School

3D Printing and Assembly of Pocket Slingshot provided by Cloud 3D Print

Making an icepick. Inspired by JimmyDiresta

Knuckle Dusters By LRC

How to Make; Brass Knuckles out of Milk-Jugs

Real Brass Knuckles - Made with Epoxy

Teen Brings Electric Brass Knuckles To School

How To Make Plastic Knuckle Dusters! (Real Super Punches)

Self defense Knuckles.

Non-Metallic ABS Knuckle Duster - New Brass Knuckles