ThinkGeek :: Stuff for Smart Masses. Cold Steel Highest Quality Bokken Set - Dueling Katana Swords. (View image by itself) Set of two Cold Steel bokken swords. The Boken was originally designed to imitate a live blade without the possibility of causing permanent injury. Constructed from the highest grade polypropylene available and closely duplicates a real Katana in length, size, weight, and feet and has the advantage of being virtually unbreakable, as well as remarkably stiff and cut resistant. Specifications: Weight: 17.7 oz Thick: 1 in. Blade Length: 30 in. This item usually ships in 1 - 2 days. Woot.