A Chakra Blade (チャクラ刀, Chakura Tō) is a special-made metal that can be infused through "chakra flow" with elemental chakra or even Yin–Yang chakra to produce added effects. According to experts, the blades are able to absorb the chakra type of the user, and become the origin of a technique, for the user.
The special made metal is most in favour with individuals who are capable of chakra flow or ninjutsu, using it to enhancing their tools and equipment for increased efficiency.