- BIC 935713 compass with a durable metal body, designed for precise lines in geometry and technical drawing - Interchangeable system compatible with leads (included) or pencil, allowing you to adjust the line thickness as needed - Non-slip head that ensures a firm and comfortable grip during use - Sliding tip protector that prevents accidents and protects the tool - Safety lock that secures the arms, ensuring stability and accuracy with every use - Includes a case with 2 spare leads, ideal for extended use in the classroom or office - Essential tool for students, teachers, and professionals in mathematics and drawing