Artist 11 Inch Proportional Divider - Upgraded Drawing Supplies & Drafting Tools - Adjustable Caliper & Subject Dividers for Art Drawing Tools

The Accurasee Proportional Divider is an essential tool for artists who want to transfer accurate scale measures for the perfect perspective. This device is very useful in getting the proportions right in your artwork. The clear plastic washer located at the peg's base is a unique feature that ensures the tab and the device's arm don't get stuck together while adjusting the tab. The proportional divider is useful for measuring a photo or screen well, but you have to make sure that you're consistent in holding it the same distance from your eyes. The device's package comes with an insert that provides some instructions for use; however, more detailed information on how to use it can be found on YouTube. The device has several holes, and it's a trial and error process to get the machine set correctly as there are no scale markings on it, but the approximate scales are 1.0/1.1/1.2/1.4/1.5/1.7/1.9/2.1/2.3/2.6/3.0/3.4/4.0/4.7/5.6/6.9. Although this is an exceptional tool for artists, some customers complained about the difficulty in changing settings, and others said that the device was not accurate and too flimsy for close to accurate use.