Luffy Nidai Kitestsu Mini Katana - Tophatter's Army Products & Self DefenseThis mini katana, with a length of 17. 75 inches, is completely faithful to the original design of the series. It features a black finished steel blade with a satin cut, giving it a truly authentic look. In addition, its handle is carefully strung blank, providing a comfortable and secure grip. But it is not just a collector's item. Luffy Nidai Kitestsu Mini katana is also functional. With a blade thickness of 2. 8mm and a blade length of 11 inches,