COMPLETE SET: This professional geometry kit by YOOUSOO includes a precision drawing compass and a clear 180-degree protractor, ensuring accurate mathematical drawings and measurements. Perfect for students and professionals who require meticulous accuracy in their work. PROTRACTOR FEATURES: Equipped with a 6-inch swing arm, this protractor boasts a clear design with precise angle markings from 0 to 180 degrees, facilitating easy measurement readings. Its transparency and detailed scale make it an indispensable tool for any geometry toolkit. COMPASS DESIGN: Crafted for stability and precision, the smooth-operating drawing compass allows for the creation of perfect circles and arcs. It features a durable construction and a stable pivot point, making it a reliable choice for complex and detailed geometric drawings. VERSATILE APPLICATION: Ideal for a variety of uses including geometry classes, technical drawings, architectural sketches, and other mathematical calculations that require precise measurements. This set supports both educational and professional projects. PORTABLE DESIGN: Designed with portability in mind, this lightweight and compact toolset fits easily into standard school supplies, making it perfect for students to carry between classes or for professionals on the go. Ensures you have your essential drawing tools whenever needed. Color: Random Material: plastic Package Contents: 1*geometry math set 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.