This Spring Bow Compass Set has all the components necessary for making small to large circles with lead or ink. It features a double break-leg design for flexibility in use, center wheel for fine adjustments and steel hoop for longevity and reliability. Compass is 6-1/2" long.
The compass makes circles up to a 13" diameter, and up to 21" with the included extension bar. The set comes with a universal adapter to attach the included ruling pen and other pencils and pens to the compass. Comes in a vinyl pouch with extra leads. By Pacific Arc.