Clear graduations on this compass tool: Clearly visible graduations improve accuracy and reduce the chance of errors. Woodworking compasses and mathematical compasses often produce uneven and messy circles. Comfortable and easy-to-use drawing compass: This tool is comfortably designed; its ergonomic shape ensures a comfortable grip and fits comfortably in the hand, even for extended use. Metal compass. Two-in-one pen-style folding compass: This multi-functional pen-shaped tool combines a foldable drawing compass with an integrated 10cm metric ruler, reducing clutter and allowing you to complete measurements and circle drawing with just one pen. Anti-slip screw-lock pocket compass: Two adjustable screw knobs securely lock the opening width to prevent slippage; the double-pointed metal tip remains stable during rotation, allowing for clean and crisp circle drawing. Geometric compass: This pen-style digital compass features a superior design suitable for drawing detailed drawings. This drawing tool is suitable for a variety of uses, including drafting and technical drawing, making it a multi-functional tool.