ALVIN Basic-Bow Combination Compass with Ruler Pen 6" Model 505 Ideal for Geometry, Drafting, and Engineering, Drawing and Architecture Tool, Metal - 6 Inches

Easy to Use - This 6 inch compass comes with interchangeable pen, pencil and divider parts that switch out effortlessly. , Ideal for Students - Perfectly useful for all levels, whether for geometry class, drafting, architectural design, construction, or engineering. , Multipurpose Tool - Exactly what you need bisecting angles, constructing geometric shapes, perpendicular lines, parallel lines, triangles, circles, rectangles, pentagons any geometrical shape. , Stays in Place - Designed to perform consistently over time, includes sharpener for lead point to always be able to create precise arcs and circles. Also includes a small container for extra lead. , Extra Parts - Has a split-leg design for interchangable pen, pencil and divider parts. Also conveniently includes a spare ruling pen, needle point and bolt, as well as extra lead.