From the leader and cutting and measuring products, Westcott is dedicated to supporting education and inspiring creative activities in the classroom and at home. Products are specifically designed for growing students, created to be fun and functional with superior quality and exceptional value. The Westcott 180 degree protractor is made of sturdy plastic and comes in protective sleeve. Features 0 to 180 degree measurements in 5 degree increments, and a ruler at the bottom for convenient measurements. Sold as a pack of 36.