A square button displaying the Japanese kanji 指 (yubi), meaning "finger" or "to point" in a certain direction.

This symbol is used to indicate a designated, reserved, or pointed-to item, and is commonly associated with the Japanese word 指名 (shimei), meaning "nomination" or "designation." As such, it is often used as part of the term 指定席 (shitei-seki), which translates directly to a "reserved seat" on trains. Also used in Japanese mobile iconography to indicate a reserved or designated service.