Safe-T Plastic Orange 360 Degree Protractors, Bulk Set for Classroom Geometry (Pack of 24) Measure angles beyond 180 degrees with this full circle plastic protractor The clear plastic design allows visibility through, and the black markings make it easy to read The scale has 1 degree graduations around the 360 degrees Each protractor measures 4-inches across Includes 24 protractors - the safer, flexible, and shatter-resistant plastic won't break when bent