United Scientific™ Chalkboard Drawing Instrument, Compass

Durable, Lightweight Oversized Plastic Instruments, Designed For Whiteboards And Chalkboards. Triangles, Protractor, And Ruler Are Made Of White Polystyrene And Feature Handles For Ease Of Use. Compass Is Made Of Clear Acrylic.
Durable, lightweight oversized plastic instruments, designed for whiteboards and chalkboards. 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. Individual parts are also available separately. Contents: Triangle, 45 degrees, 23" base, 16" sides 1, Triangle, 60?, 22" base 1, Protractor, 180 degrees marked with intervals of 1 degree ,20" base, 10" height 1, Meter Ruler, graduated in inches (1 - 39") and centimeters (1 to 100cm), 7cm wide 1, Compass, with locking screw, rubber suction cup, 18" long,
accommodates most dry erase and magic markers, radius 15" 1