These Knuckle are made from 100% pure brass, and though they are only for novelty purposes, they can definitely be used for personal protection. Unscrew the belt pin, slip your fingers into the four 1-inch holes.

Specifications:

• Overall Length: 2.5 inches
• Overall Width: 4.375 inches
• Finger Hole Size: 1 inch
• Thickness: 10.45 mm

Features:

• Material: 100% Pure Brass
• Paper Weight Accessory
• For Novelty Purposes Only