The Proportional Divider is a better solution for artists looking to achieve accuracy.
Align your desired subject matter in the small end of the divider and transfer the spacing of the larger end to your drawing surface.
Dividers are used for scribing circles and also for taking off and transferring dimensions.
Dividers are one of the most basic and useful types of mathematical instruments. Dividers consist of a joint pair of legs, each with a sharp point..They can be used for geometrical operations such as scribing circles but also for taking off and transferring dimensions.

The Nautical Solid Brass Divider is a great addition to any desktop. Handcrafted from solid brass,Brass/ Steel 9 in. Proportional Divider. This New Reproduction is a Brass/ Steel 9 in. Proportional Divider, reproduction crafted in the style of a century ago. Adjustable locking nut and steel points on both ends. Nice item to bring back the look or many years gone by. Traditionally proportional dividers are used to increase or decrease the size of a project.As an example, you may want to increase or decrease the size of project by 50%. By using the 1:1.5 setting you can accomplish this task, and 1:2 setting will either reduce it by 1/2 or double it. This item is for the average user, not the person wanting high accuracy like the expensive ones, we sell many of these to schools where teaching with less expensive is important. These are handmade copies of the antique ones used many many years ago. This detailed item measures approximately 9 inches Point To Point and 3/4 inch wide. or looks great as a piece of home or office nautical decor.Dividers are one of the most basic and useful types of mathematical instruments. Dividers consist of a joint pair of legs, each with a sharp point..They can be used for geometrical operations such as scribing circles but also for taking off and transferring dimensions. Dividers are used for scribing circles and also for taking off and transferring dimensions. It is suitable for architects, engineers, draftsmen, builders, teachers, students, navigators etc. This device is perfect for artists who do a variety of geometry and designing tasks.

Artist Proportional Scale Divider Drawing Tool Professional (Brass, 9"/Leather Case)