It has a length is about 190cm in the case of high-quality product called hongen, used by the Ikuta school, and about 182cm in the case of products used by the Yamada school.
長さは生田流の本間（ほんげん）と呼ばれる高級なものが6尺3寸（約190cm）、山田流が約6尺（約182cm）である。