Claymore (sword)

The Claymore sword is the eponymous weapon of the Claymores. Each Claymore sword is associated with a particular Claymore via their Claymore symbol engraved at the base of its blade.

Characteristics
The Claymore swords are very large, to the point where baseline humans cannot wield them, as a half-Yoma hybrid's physical strength is necessary to lift them. They are also extremely durable, commonly outlasting their owners. In fact, no Claymore sword has ever been depicted broken or otherwise damaged, and it is outright implied that they are completely indestructible.

Customs
Each Claymore warrior is intrinsically associated with their Claymore sword. It is rare to see a warrior without her sword and the latter often serves her not only in combat but also more mundane purposes. E.g. most Claymores rest by leaning against their swords stuck into the ground. When a Claymore dies, her sword is used as grave marker.

Although only one sword is issued per Claymore, some (e.g. Undine and Deneve) wield two of them at once. The second sword most likely belongs to a dead warrior. The Organization does not forbid this (as Undine's case shows).

Manufacturing
The swords are apparently manufactured by the Organization individually for each Claymore (as evident in their symbols). Since the swords are indestructible, they require no maintenance but they are also not required to be returned to the Organization. The technology behind producing indestructible weapons is yet unclear.