Professional Stainless Steel Drafting Compass Set with Extension Rod - 7-Piece Geometry Compass Kit for Engineers & Students Features: Versatile And Universal: Precise centimeter scale for measurement. Easy to use for all levels of students, engineers, designers, artists, teachers to draft, paint, draw school or office projects. Sturdy: The compasses for geometry are made of metal and the geometric tools are constructed of premium material, which are strong and can be used for years. Ergonomic Design: Greatly improves the safety and comfort of using the compasses, which work with pencils and leads, thus ensuring that users finish mathematical tasks or building plans with high efficiency. Portable With Storage Box: Packed with a shatter-proof case, the geometric toolbox is easy to carry and safe for keeping. You can easily put the measuring instruments in your pocket and the tool will come in handy as soon as you need it. More Usage Scenarios: The protractor and compasses set is well crafted, tool that you can create accurates and precise drafts, blueprints, crafts, designs and more with eases. Suitable for student, teachers, and more. Great for drawing vertical lines, parallel lines, triangles, circles, rectangles, pentagons and almost any geometric shape. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Size: As picture show Package: 1 Set compasses, 1 Set Rulers Package List: 1 Set Professional Drafting Drawing Compasses, 1 Set Rulers