Draw Any Size Circle with Our Yardstick Compass
Slip these trammel points on any standard size yardstick and draw arcs and circles up to 72 inches dia. Use a longer stick the same width and thickness as a yardstick and draw circles as large as you like. All aluminum except steel point. 3-1/2 inches long. Great for laying out model railroad curves.
WARNING: This product can expose you to chemicals, including Lead which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, go to:www.p65warnings.ca.gov