Features: Scale divider can be used to align your desired subject matter in the small end of the divider and transfer the spacing of the larger end to your drawing surface. Easy to use. Increase, decrease or measure the size of a subject to draw. There is a locking device so that you can keep the same proportion on your drawing. Proportional dividers are accurate, pocket-sized, and require no special electronics, so they are popular tools in these fields. The scale divider tool is not only an essential tool for architects, but also an essential tool for art workers. Specifications: Material: Plastic Size: approx 26x1.8cm/10.2x0.7in Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Scale Divider