[image]https://leganerd.com/wp-content/uploads/LEGANERD_029451.jpeg[/image]
[image]https://leganerd.com/wp-content/uploads/LEGANERD_029452.jpeg[/image]
[image]https://leganerd.com/wp-content/uploads/LEGANERD_029453.jpeg[/image]
[quote]”Constrained Ball” is a drawing aid created by Korean 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.[/quote]
http://www.gihawoo.com/7
