High Quality MaterialThe 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 DesignWith adjustment screw for fine adjustment, it can adjust the width between flat feet; with pen cover, used to fix the pencil without slipping, easy to draw arcs and circles. Easy to UsePut the pencil into the pen case and secure it, adjust the required angle through the wings, get the precise diameter, measure and draw the arc. Easy to carryThe compass is compact in structure, lightweight and easy to carry. Just put it in a toolbox or bag, suitable for outdoor or indoor work. Widely UsedThe wing compass divider is used in math, geometry, art, sketching and drafting; widely used in mechanical tracing, leather marking, DIY making, etc.