This YUREXTM development project is a special device that measures binbo-yusuri (the action of jittering your leg). All kinds of public relations content can be found on the official Website, promoting the idea of YUREXTM and binbo-yusuri, including a ‘product demonstration movie,’ and an ‘Introduction to BBU,’ which is written on the rather grand subject of ‘the human being and binbo-yusuri.’