The Good Measure name represents a high quality and accurate measuring system and the good that comes in the form of a donation to breast cancer research for every Good Measure Ruler sold. Make a difference while making something beautiful. Feel good about your choice to purchase Good Measure Rulers - the only rulers with a cause. The Circle Template is designed with a simple purpose - to create accurate circles and arcs. Use it to easily draw the desired cut line for circles from 1" to 7.5", and to quickly add a turn line exactly .25" from the cut line. Indispensable for creating the centers for Dresden-style plates using the 22.5 Degree Wedge ruler (#GM225D ). All Good Measure rulers are designed to be compatible with each other, ensuring accurate cuts and allowing you to utilize these rulers for all your cutting needs. Each ruler is labeled with its size or the name of the specific job it does. Good Measures rulers are accurate, easy to read, and versatile. Made in the USA!