A knuckle duster is a piece of metal that is designed to be worn on the back of a person's hand as a self defense weapon, so that if someone try to mess with them they can protect themselves by using a knuckle duster.

• Type : Knuckle Duster
• Total Length : 4.50 Inches
• Weight : 0.41 lbs
• Knuckle Material : Alloy

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