To use this technique, the user must expel chakra from one or more tenketsu points around their body, depending on the shape and size, it my take from only one point, to multiple. From there, the user can form this shield of chakra to any shape they want, it can be anything from a flat circular disk, thick square, and even three dimensional shapes like cubes and prisms. Also depending on how much chakra they put into these shields, they are able to defend from taijutsu attacks, other jutsu, projectiles, hard substances, and even explosions of massive proportions. These shaped shields can be from the size of a coin, to large enough to protect the user from a technique that does wide spread damage. Though again, this all depends on the user and their chakra.