- Prevents Unintended Adjustments: This product is designed to keep your settings secure, eliminating the risk of accidental changes during use. - Optimal Size: The maximum circle diameter of 10-3/8 inches (265 mm) provides a versatile range for various applications, making it suitable for both professional and personal projects. - Convenient Accessories: Each unit comes with a spare lead tube, ensuring you have a backup on hand when you need it. The included plastic wallet offers easy storage and portability, keeping everything organized and accessible. Use Cases: - Ideal for artists and designers who require precision in their work, allowing for meticulous circle drawing without the worry of shifting settings. - Perfect for drafting and engineering tasks, where accurate measurements are crucial for project success. - Great for educational purposes, helping students learn geometry and design with confidence and precision. This product strikes the perfect balance between function and convenience, making it a reliable choice for a wide range of users. With its thoughtful design and practical features, you can trust it to deliver consistent performance every time.