Constrained Ball - Giha Woo

We've found this brilliant but somewhat strangely named device by Korean designer Giha Woo. Called the "Constrain Ball" (shouldn't it be wheel?), the device claims to act as a ruler replacement to draw straight lines. To top it off, you can even read off the length of the line that you've just drawn, presumably by the distance traveled by the wheel! (It's kind of like Google Sketchup but in real life.)

Via Gihawoo...

Home...