Drafting tool: fine workmanship ensure its practicability and durability, this circle protractor can companion you for longer time, protractors; Plastic circle protractor: suitable for most students to use, assisting them in learning math and geometry, also suitable for teachers to use, circle geometric ruler; Math geometry protractor: you can use this circle protractor to draw radial lines or measure angles, greatly saving your time, portable measuring ruler; Professional circle protractor: this circle protractor is made of plastic material, not easy to crack or break, support long term use, drafting ruler; Clear protractor: the scales on this circle protractor are not easy to fade, look clear even after used for many times, students protractor
What's in the box
5 x Rulers
