COMPASS RULER 18IN (Item# 4110-1)-1

Compass Ruler 18in

List Price $19.95 Your Price $4.99 Item Number CO-4110-1 Manufacturer Alvin Manufacturer Part No 4110-1 click on thumb to view

Solves the problem of making perfect large circles up to 36in in diameter. This beam compass attaches to any yardstick and automatically shows figures for the radius, circumference and area of any circle in inches or centimeters. 18in overall length