The Mr. Pen Metal Compass with Lock in Rose Gold is built for consistent precision in design projects—ideal for experienced artists and students just starting out. Ultimate design-project tool: Made for producing precise shapes consistently Comprehensive, versatile set: Includes a precision bow compass , spare lead , needles , screws , and nuts Spring-loaded head + center wheel: Helps prevent unwanted leg movements and supports precise control Classic, simple design: Easy operation and steady control for drawing, drafting, and geometry Fast size adjustments: Adjust circle size swiftly for smoother workflow Essential for accuracy: A must-have addition to any design tool arsenal when precision matters