Alvin - Protractor Open Semi-Circle 8"

Easy to Use - Center cutout with finely bevelled edges makes for easy lifting and maneuvering, making writing and drawing simple and convenient. Durable and Long-lasting - Made of durable 0.09-inch thick polystyrene, this protractor features long-lasting and easy-to-read graduations that won't rub off with extended use. Multipurpose Tool - Highly multifaceted tool that is great for students, hobbyists, and professionals alike. Great for drafting, architecture, drawing, and so much more. Precision Design - Designed for accurate and reliable measurements and consistently smooth edges to make every project easy and accurate.