Dimensions: 1.25"W x 0.12"H
	
Graduations: inches and centimeters
	
Makes perfect circles up to 36” in diameter
	
Attaches to thin profile yardsticks
	
Shows radius, area, and circumference of any circle automatically
	
Comes with a hanging hole
	
Available Lengths: 	
		
12"- #4105-1 
		
18"- #4110-1