 The primary stance in this series of kata is kiba dachi, which emphasizes the strengthening of the legs and hips.A distinct characteristic of the kata is the technique where the circular movement of the arms protects the head in a block, while simultaneously setting up the opening for the uraken.The appearance of kata can be seen as simple, but from careful study and practice of the bunkai, it is very rich in techniques, and is seen as an effective fighting system.