Another traditional cup is the "masu", a box usually made of "hinoki" or "sugi", which was originally used for measuring rice. The masu holds exactly one "gō", , so the sake is served by filling the masu to the brim; this is done for chilled or room temperature sake. In some Japanese restaurants, as a show of generosity, the server may put a glass inside the masu or put the masu on a saucer and pour until sake overflows and fills both containers.