Chalkboard Drawing Instruments Set, United Scientific

Instruments for chalkboard demonstrations.

Durable, lightweight, oversized plastic instruments, designed for use on 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.

Set includes: (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 to 39") and centimeters (1 to 100 cm), 7 cm wide, and (1) Compass, with locking screw, rubber suction cup, 18" long, accommodates most dry erase and magic markers, radius 15".