This 3D ruler is modeled after piano keys. While it does not contain labeled measurements in order to preserve the design’s theme, the ruler is 17 cm long with white keys split into 1 cm segments to allow you to use it as a measuring tool.

Not only does this ruler feature a fun, playful design, the smooth material by acrylic manufacturer ZEROMISSION brings it all together for an attractive look. It also stays true to its motif as the size scale of white keys to black keys is the same as a real piano.