Known to be the strongest Sword in the world, the Kokutō Yoru is one of the 12 Saijō Ō Wazamono Grade Swords, under the ownership of Dracule Mihawk. It is an ornately decorated and very long blade with a total length of at least 7 feet, as it is seen to be at least a full head taller than Mihawk himself (who is 6'6", or 198 centimeters) when it is placed on his back. On the hilt of this blade is a crossguard, though the bars between the blade and the hilt are much longer than average. The blade itself is pitch black with a very strong sheen, and its shape is similar to the German "Großes Messer", a single-edged long sword with a slight curve at the end of the blade