Professional Geometry Set with Compass and Protractor Drafting Tool. Features: 18-Piece Geometry Set includes plastic compasses protractor pencil compass eraser and pencil lead refills. A practical compass geometry set with durable metal compasses that will not bend or flex during use. Ergonomically designed compass head is comfortable to hold. Universal holder compass works with any standard sized pencil or pen. Rulers triangles and protractor feature graduations for easy identification. Easy to carry with a durable storage box for convenient transport and storage. A Practical Tool for multipurpose use: This tool set is perfect for students teachers math experts architects engineers artists and designers at any level. Can be used in school office home or out work. Specifications: Material: Plastic Color: Green Blue Clear