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Circle ruler is a new type of compass beyond the old way. It is a combination product of ruler and compass. compass can not be used without ruler. Also even with ruler, it is difficult to measure accurately. If compass moves slightly, inaccurate circle is drawn. But circle ruler has a good point side of compass and ruler. It draw a circle without a ruler. first, knob moves from side to side in ordrt to draw a circle. second, turn the knob and fix, put a pencil in the hole and draw a circle.
With this product that everyone can become be even more accurately and conveniently. Also It dosen't have sharp parts so it is easy to store, carry
seoul, South Korea
seolu, South Korea
1)Meeyoung Hong 2)Dongjin Shin 3)Jihoon Joo