High quality material: The large pencil marking compass is made of high quality carbon steel, sturdy and durable, with exquisite craftsmanship, which can be used for marking and drawing. Unique design: With the fine adjustment screw, the width between the flat feet. with pen cover to fix the pen without slipping, easy to draw arcs and circles. Simple operation: put the pen in the pen case and fix it, adjust the desired angle through the wings, determine Find the exact diameter, measure and draw the arc. Easy to carry: The compass is compact, lightweight and easy to carry. Just put it in a tool box or bag, suitable for outdoor or indoor work. Widely Used: The wing compass divider is used in math, geometry, art, drafting and drafting. widely used in mechanical marking, leather marking, DIY, etc. Product Description Product Specification: Material: Carbon Steel Color : Silver Quantity: 1 piece Functionality: The Large Pencil Marker Compass is made of high quality carbon steel, high quality, durable, and can be scraped and brushed. The pencil marker circle has a lockable Wing that can easily be repeated. It locks the separation of the wings and measures between two points. The compass can be fast and smooth. The metal tip is firmly engraved and will not slip. Used for repeating measurements or drawing arcs and circles With a lockable wing and a pen holder, the wing divider is widely used for mechanical tracing, leather marking, DIY making, etc.