Easy to use to enlarge, shrink and measure objects Proportional dividers are a popular tool in these fields because they are accurate, pocket-sized, and do not require special electronics Locking mechanism allows you to maintain the same ratio on the drawing Scale dividers can be used for the subject of the object at the small end of the divider to transfer large end spacing to the screen The scale divider tool is not only an essential tool for architects, but also an essential tool for art workers, Manufacturer: Rxgiasup