Suitable size: With a measuring range of 0 to 180 degrees and a minimum angle accuracy of 1 degree, our protractor features clear line distinction every 10 degrees and is 4 inches (10cm) long, making it a for your book, notebook, and pencil case. What you get: Experience and convenience with our pack of 100 protractors, each individually sealed in an opp bag to avoid collision and wear. Excellent use experience: Enjoy excellent use experience with clear printing, allowing for precise line distinction and easy reading of text, letters, and numbers. Strong material: Made of strong and plastic material, you can rely on our protractors for long-lasting use. Widely used: Suitable for a wide range of activities, such as painting, measuring, homework, technical drawing, and engineering and biomechanics classes, give our geometric protractor to your students, family, friends, classmates, and office workers as a loving and caring gesture., Manufacturer: Potadak