It is a wooden board that is used instead of large drums, small drums, and drums when practicing or making arrangements. It is often made of hardwood such as zelkova, with a rectangular parallelepiped outer shape and a square hollow inside. Sit down straight and put it in front of your knees, and stick Japanese paper with a fan which is split in two to make hariori, then we make a sound by hitting hariougi to hariban. In many cases, we use large drums to make arrangements and use small drums and drums as musical instruments. It is also called hyoushi-ban.