Feature

●Makes perfect large circles up to 36 inches in diameter
●Allows precise measurement
●Attaches to thin profile yardsticks and automatically shows figures for the radius circumference and area of any circle in inches or centimeters


Description

Solves the problem of making perfect large circles up to 36" in diameter. This beam compass attaches to thin profile yardsticks and automatically shows figures for the radius, circumference, and area of any circle in inches or centimeters.