Standard Y-shape scale ruler usually contains 6 scales, which may not be useful enough for professional design. These rulers, sometimes, are either too big to be carried around, or too small that ...

The Gravity Ruler Luggage Scales, designed by students from Politecnico di Milano and Lin Wei, are one of those innovative designs that immediately make you wonder why it hasn’t been done before.

Launched on Kickstarter, the Escala pen has a long, triangular cap that doubles as a scale ruler graded with imperial and metric scales.. Aimed at architects and engineers, who use pens and rulers ...