It is a sheaf of straw bunched together in a shape of bale to take arrows at point-blank range, as the training of Kyudo-shaho Hassetsu (eight arts of shooting an arrow), checking the characteristic of bow, or warming up in Kyudo or Kyujutsu, the art of Japanese archery.
日本の弓道、弓術で弓道射法八節稽古、及び確認、慣らしを行うために至近距離で矢を受ける藁を俵状に束ね巻き束ねたもの。