Alumicolor 30-60-90-Degree Triangle 12in

This Alumicolor 12 inch 30-60-90 degree silver triangle is made from lightweight, durable aluminum making them ideal for use in the classroom and professionals in the field. The triangle features inch and centimeter calibrations as well as whole sizes up to 1 inch in diameter. The edges are calibrated to the 32nds of an inch and all holes are accurately calibrated and labeled for convenience