Many statues of Kangiten are small statues placed in zushi, miniature shrines in which Buddhist images or rolls of sutras (kyo), are kept; they are made of metal because a mass is held by Yokuyu-ho (浴油法), placing it in oil.
歓喜天の彫像は、円筒形の厨子に安置された小像が多く、浴油法によって供養することから金属製の像が多い。