Our Blue Bad Kitty Iron Fist Knuckleduster makes a perfect paperweight in the office or around the house. It features two finger holes with each carrying a circle design on the front which will leave a lasting impression. It is sports a glazed blue finish with two finger holes measuring approximately 2.5 CM in diameter and 3.25 inches in length. This Knuckle will strike fear into your hearts of your enemy. Specifications Overall Length: 3.25 Inches Overall Width: 2. Inches Materials: Alloy Aluminum, Solid Metal Finger Holes Dimensions: 2.5 cm Thickness: 4.064mm Color or Finish: Flat Blue