Our Black Iron Fist Knuckleduster makes a perfect paperweight in the office or around the house. Screw in the buckle pin and transform this knuckle into a buckle. It features four finger holes with each carrying a rectangle design on the front which will leave a lasting impression. It is sports a glazed black finish with large finger holes measuring approximately 25.78mm in width and 26.74mm in length. This Knuckle will strike fear into your hearts of your enemy.