Wrenches and nuts. The size and form of wrench must be the same as nuts precisely.

Waves have been favorably designed in any time. The sea is a very close object for the Japanese.

A full, new, half, waning, crescent, waxing moon..., Lunar phase. In Japan, every moon from each phase is adorned with a beautiful name.

It is said the name "Udon" noodle (wheat noodle) is derived from "Konton" imported from China in the Nara Era (710-794). The current form was made during the Edo Era (1603-1867). There are many types of Udon noodle in Japan: Inaniwa-Udon (Akita Pref.), Mizusawa-Udon (Gunma Pref.), Houtou (Yamanashi Pref.), Kishimen (Nagoya), Ise-Udon (Mie Pref.), and Sanuki-Udon (Kagawa Pref.)

A traditional Japanese string instrument (3 strings)