The wooden partitions on the floor of the theatre in which the audience would sit. At their smallest they were 1 metre square and would accomodate 4 people
A small wooden box that traditionally held 180 ml (5.5oz) or one meals worth of rice. Traditionally made from Japanese cedar (Sugi or Crytomeria) they are sometimes used to serve saké with a pinch of salt on one corner.
A masu was originally a square wooden box used to measure rice in Japan during the feudal period. Though small by today's standards, one masu was supposed to be enough rice to feed a working man for one day. In a related measurement standard, one Koku is enough rice to feed a working man for one year.