Feature:Using the scale divider, you can quickly make a very realistic drawing. Learn how to use it in just a few minutes and draw like a master. Easy to use. Specification:Material: Plastic Size: Length 25.4cm Accessories: 3 Pieces Steps to Use:Step 1:Slide the locking clip up and down to adjust the scale and slide the green label towards the center of the divider to reduce the transfer size. Slide the green label toward one end to enlarge the transfer size. Step 2: Hold the proportional divider with one hand and extend your arm directly in front of you. Then place the object you want to draw in the small hole of the proportional splitter. Set the divider with one hand until the two pin points on the short end accurately reflect the size of the object from your perspective. Step 3: Bring the proportional divider back to the drawing paper or canvas and use a pencil to mark the length of the larger divider opening. Since the proportional divider acts on the joint, the small hole and the large hook are proportional to each other. Therefore, even if you use a small hole to measure an object, a large hook can move the measurement to a larger scale. Step 4:Continue measuring the object by opening the proportional splitter small and transfer the scaled measurement data to the drawing paper. Use these measurements to draw a scale map. Tip:Place a proportional partition on the drawing paper or canvas to prevent your feet from moving. Even the slightest movement can cause inaccurate scales. Always use a proportional splitter to measure the object, with the arm fully extended to maintain consistency of the measurement method. Packages:1 X Scale Divider Drawing Tool3 X Accessories