Yakushi Nyorai in the center is a statue made of natural timber while Nikko and Gakko bodhisattvas in both sides are colored statues, and they are not apparently a set of three Buddhist statues as their styles are different, but they all were made in the Heian period (Some says the Buddhist statue in the center was made in the Kamakura period or later).
中尊の薬師如来が素木仕上げであるのに対し、脇侍の日光・月光（がっこう）菩薩像は彩色仕上げで作風も異なり、本来の一具ではないと思われるがいずれも平安時代の作とされる（中尊像については鎌倉時代以降の作とする見方もある）。