The Perfect Butt is an easy to use, accurate and stable copying pencil.
The package contains a drawing pencil and copying rings of different diameters.
When copying with a ring, the pencil is placed into the center of the ring and copies a line in the distance of the slected ring.
After drawing the curve, you can also create an exact counterpart.
Use four sizes of the rings 29, 50, 70 and 90 mm according to your own need.
Bear in mind that the distance of drawing is always half the diameter of the copy ring.
A tool designed for quick drawing of outlines.