Geometric Compass: Made of stainless steel, while the geometric tools are made of high-quality plastic, ensuring durability and longevity. Available in multiple colors. The maximum compass diameter is 23 cm. 8-Piece Geometry Set: The package includes: 1 drawing compass, 1 mechanical pencil, 1 0.7 mm pencil lead, 1 eraser, 1 protractor, 1 ruler, and 2 set squares. Comes with a plastic storage box for easy carrying and storage. Completely meets your needs. Drawing Compass Set: Featuring a screw-locking design for stable drawing radius and to prevent slippage; comes with dedicated 2B pencil leads to help students draw neat and consistent circles in exercises, quizzes, and craft projects. Convenient Compass Geometry Set: The sturdy and durable metal compass will not bend or deform during use. The ergonomic compass head offers a comfortable grip. Transparent measuring tools with clear, durable graduations: The transparent plastic ruler and protractor are printed with clear metric and angle markings, making them easy to read even during timed exams. The transparent design allows users to see the backing paper for precise alignment.