Features: brand new and high quality Proportional dividers are accurate, pocket-sized, and require no special electronics, so they are popular tools in these fields. Proportional dividers allow architects and artists to transfer different measurements onto paper while keeping the same proportions. The proportional scale divider made of strong plastic, it takes constant use and handling. The proportional divider the best keep secret to improve your drawing, this easy to use tool. Proportional Divider let's you transfer subject matter onto your canvas or paper. Specifications: Material: Plastic Size:26x1.8cm/10.23x0.70inches Note: Please allow 0-1mm errors due to manual measurement, make sure that you do not mind before you order. Package includes: 1 x Multifunctional Drawing Ruler