This toolset is perfect for any level of students, teachers, math experts, architects, engineers, artists, designers, and can be used in school, office, home or work.Product Name: Geometry Drawing CompassProduct material: metal, PPProduct function: suitable for mathematical equations, object geometry, art design, drafting sketches, drawing and other fields.Use range: school office, woodworking home, family home.Product content: compass x1, indexer x1, ruler x1, triangle ruler x2, lead core x1, eraser x1.Purchase items:Except for the main product compass protractor/math compass shown in the main image, other items are for display only and do not include other items.Due to different lights, monitors and personal colors, there will be color differences between the actual product and the photo, please refer to the actual color, please understand.Because it is manual measurement, there may be some small errors, please use the actual product as the standard, please understand.If you want to buy more quantity, please contact us via email, I am glad to serve you!