Easy to Use - This compass is exactly what an artists student crafter or hobbyist needs. It can be used as a basic drafting or drawing instrument for both projects and artwork. Ideal for Students - Perfectly useful for all levels whether for geometry class drafting architectural design construction or engineering. Multipurpose Tool - Exactly what you need for a number of projects including bisecting angles constructing geometric shapes perpendicular lines parallel lines triangles circles geometrical shape. Extra Features - Includes a sharpener for sharpening the point of the lead so you can always create precise arcs and circles. Also includes a small container for lead as well as interchangeable pen. A Professional s Choice - Alvin has been the professional s choice for drafting tools and drawing supplies for over half a century. Since 1950 we have brought quality and value to our customers. Our tools help bridge the gap between ideas and innovations. We are known for our wide selection of high quality tools at a fair price. Proudly Made in Germany