Kaiten-zushi are sushi restaurants, where the sushi
dishes are presented to the customers on a conveyor belt. Customers can
freely pick the dishes as they pass in front of them or order dishes
which are not available on the belt. In the end, the number of plates
is counted to determine the cost. There are usually a few kind of
plates - which differ in colour or pattern, each being associated with
a certain price of about 100 to 500 yen. Kaiten-zushi tends to be less
expensive than usual sushi-ya
/ sushi restaurants.