About this item:
Durable, lightweight oversized plastic instruments, designed for whiteboards and chalkboards. 

Contents:
* 1 triangle, 45°, 23" base, 16" sides
* 1 triangle, 60°, 22" base
* 1 protractor, 180° marked with intervals of 1°, 20" base, 10" height
* 1 meter Ruler, graduated in inches (1 - 39") and centimeters (1 to 100cm), 7cm wide
* 1 compass with locking screw and rubber suction cup, 18" long, 15" radius

Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic, and accommodates most dry erase and magic markers.