The Cold Steel O Tanto Bokken Training Sword Knife - 92BKT is a virtually unbreakable Bokken, which is manufactured by the company Cold Steel. It weighs 9.2 oz and is 18 ½ inches long. The blade length is 12 inches and the handle weighs 8 ¼ inches. The bokken is made from polypropylene. Since it is made for training purpose, it is ensured that the edges do not hurt. The weight and the size of the bokken also match the original one. They are crack, chip resistance, and virtually unbreakable.