The opening in the Direct View™ compass point provides for the easiest, most accurate location for all circle constructions. Quick-Set™ radius indicator allows immediate comparison of inches and centimeters and setting adjustments without removing the compass from the drawing surface. A built-in protractor both measures and constructs angles. This 6” long tool is made from SAFE-T Plastic® for a safer, more durable instrument. Also available in a 40 count Class Pack that contains compasses in four colors including one clear for the overhead.