Good use experience: the protractor is made of good quality clear plastic, which allows you to see the words, letters, and figures on the page through the protractor Plastic protractor: 3pcs geometry protractors are good for measure, painting, technical drawing, student work, graphing of engineering, you can keep some in your office, class, home, workspace, etc Good gift for kids: you can make it as gifts for your kids in school, friends; Lightweight and easy to carry, it easy to put on your books, notebooks and pencil case Application: the plastic protractors are the common shape protractor, it's universal, you can be applied to settle the math problems frequently, these are also suitable for architects, carpenters, students, teachers, engineers Easy to get precise angle: the black numbers are clear and easy to identify, Unlike other protractors that are only marked every 10 degrees, our protractors have dedicated markers for every 5 and 10 degrees. This will be a better tool for those who want to be precise Specifications: Material: Plastic Color: Clear Size: 10 x 5.6 x 0.2 cm Features: Lightweight and easy to carry There are 2 circle numbers, you can read the angle anticlockwise and clockwise The black numbers are clear and easy to identify, you can read and get the angle quickly Package includes: 3 Plastic Protractors Note: The minimum accuracy is 1 degree