Large AngLegs® - Ages 5-13 - A great visual aid for teaching angle measurement and polygons to a large group of students at one time. These six AngLegs® range in length from 11.5 to 30 cm. Each length is a different color (orange, purple, green, yellow, blue, and red) and snap together easily to form effortlessly manipulated shapes. Set includes two special 6" SAFE-T Protractors® that simply snap onto the AngLegs® for angle measurement. 26 pieces.