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Review on πŸ” KOALA TOOLS, Ring Ruler 360 - Adjustable Circle Stencil & Templates Tool, 3"-6" Diameter – Geometric Tool for Drawing Circles by Morgan Gilmore

Revainrating 5 out of 5

This ruler is very handy for making round objects like balls.

As a comic artist, this ruler comes in very handy for creating round objects like spheres, planets, lights, radial construction lines and even explosions. I like that I can use my drawing hand to control the pressure of the line as I draw, as opposed to a compass. Also, it doesn't leave holes in my paper, which is cool too. I only wish they made a smaller version for 1 to 3 inch circles.

Pros
  • PRECISE CALIBRATION: Measures diameter, arc length and circumference with extreme precision.
Cons
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