The Sewing Revolution 6/8

The Sewing Revolution 6/8 is a 13 inch circular ruler made of clear durable material. Circles graduate out at ¼" intervals from a central hole. The Circle is divided by 45º lines into 8 equal segments (red lines) and by 60º lines into 6 equal segments (blue lines). Repositioning holes enable further division of the circle into 12 or 16.
At each intersection of lines and circles there is a small hole for marking with a fine tip marker or Quilters Pencil.
The Sewing Revolution 6/8 is a multi purpose tool and can be used for many different functions some of which are:
 
Finding the central pivot point for arcs and circles. 
Used for circular sewing and creating quilting designs.
Draw triangles, squares, rectangles, diamonds, hexagons and octagons.
Perfect placement of 2, 3, 4, 6, 8, 12 or 16 machine embroidery designs or appliqué.
Easily draw 3, 4, 6, or 8 point stars.
Use the edge to draw different curved quilting lines.