Strong material: Made of strong and durable plastic material, you can rely on our protractors for long-lasting use. Excellent use experience: Enjoy excellent use experience with clear printing, allowing for precise line distinction and easy reading of text, letters, and numbers. 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 perfect fit for your book, notebook, and pencil case. 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. Specification: Protractor size: 10 x 5.5 x 0.1 cm Measure range: range of 0 to 180 degrees, the minimum accuracy of the angle is 1 degree and each 10 degrees have a clear line to distinguish Good helper for measure The math protractors are suitable for teachers, students, office workers, etc. Color: As Shown Material: plastic Package Contents: 200 pcs x Protractors Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.