This item has rounded edges on the knuckle sections. Made of solid steel. Early 19th-century Irish knuckles. An overall length of 4.5 inches and a height of 3 inches. Solid and smooth finish. Huge holes with a diameter of an inch. Made by the kick ass knife king, Robbie Dalton. Weighs in at over 13 ounces - Heavy duty Length: 4.5" | Height: 3" Almost 1/2 an inch of thickness Manufactured by: Dalton Global