[What You Get]- The package contains a compass. [ Kindly reminder: The compass features a ground finish, and the surface is glossy smooth; you can apply a layer of anti-rust oil on the compass scriber to avoid rust ] [Material]- Made from high quality carbon steel for professional use. Sturdy and durable for smooth scribing and drawing [Size]- The drafting pencil compass measures approx. 30 cm/ 12 inches in length. Scriber makes circles between 1/2" and 30" diameter for measuring diameters, angles, and draw circles/arcs without repeat use of a ruler [Good Performance]- Lockable heavy duty drawing compass for repeat measurements or drawing arcs and circles. Pencil-marked compass can be used as a drawing tool, ideal for measuring along the diameter or accurately copying [Widely Use]- With lockable wings and pencil holder, wing dividers are widely used for mechanical scribing, leather marking, making DIY crafts, and more. Use as a professional carpenters compass for woodworking, carpentry, metalworking or leatherwork