The material of 'jikuhashi' (the end of knobs on a cylindrical rod at the bottom) varies according to the subject of a painting; 'jikuhashi' made of wood is for 'nan ga' (paintings of Chinese origin), 'jikuhashi' made of metal or crystal is for 'butusu ga' (paintings of Buddha).
画題により、南画には木製の軸端、仏画には金属、水晶の軸端などと選ばれる。