By showing graduations on a ruler in terms of lines under a geometric definition, rather than by the thickness of the line, we create a ruler that is closer to the true definition of a tool to measure length. This ruler indicates the position of boundary lines created between two faces lined up a regular intervals, providing a more accurate measurement of length.
 Introduction video about products : https://youtu.be/FUestPburf4（YouTube）
Award Results：GOOD DESIGN AWARD（2016） : Prizewinner
JIDA DESIGN MUSEUM SELECTION vol.19 : GOLD SELECTION