Constrained ball
Giha Woo via designboom
Aparato que permite hacer lineas rectas sin la necesidad de una regla, indicando la distancia dibujada. Una idea de Giha Woo.
[English] Drawing aid created by korean product designer Giha Woo. Once attached to the pen, this device helps to draw straight lines without using a ruler, measuring the drawn distance at the same time.
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