カプセラ
A brand of construction toy originally manufactured by the Mitsubishi Pencil Company in the 1980s, which consisted of clear plastic capsules with gears or motors that could be connected together to perform various actions. It could  be considered the conceptual forerunner of the Lego Technics or Meccano series of toys. 

h4. See also:
* "Capsela (Wikipedia)":https://en.wikipedia.org/wiki/Capsela
capsela