Made of high quality polished flexible stainless steel with precision tooled openings for accurate erasing techniques. Ideal for design, drafting and various technical drawing projects.
material: made of stainless spring steel

Currently out of stock by the manufacturer. The next arrival is scheduled for December or later.

This is a staple in any artist's collection. The model is used for study of the human body and the basic shapes in its design help artists to capture all the correct scale and shadows for their drawings and artwork!

Change units quickly and easily by rotating dial at either end of scale—no need to move the scale from the work surface.

The Ring Ruler™ is the first size-adjustable, circular ruler. It has been designed to make the drawing and measuring of circles and arcs a much simpler and more efficient experience by eliminating the cumbersome pivot-point system. Not only is the natural feel of expanding and contracting a circular ruler more ergonomic than using a needle compass, it is also quicker, safer and provides more the useful circular metrics of diameter and circumference (arc length).
One of the best features of the Ring Ruler™ is its simplicity. This makes it a great learning tool for children– especially ones too young to handle a circle compass.

• Measure diameter, arc length, circumference and degrees
• Snap in to lock circle
• Size up to 15cm diameter
• Available in US Standard and Metric Scales

Easily-shaped lead core construction firmly holds any curve for accurate drawings. Graduated in both inch and metric. Inch graduations are color-coded black while metric graduations are color-coded red for quick identification. Convenient inking edges for pen and marker use.
Calibrated designing ruler - use for quilting patterns, applique patterns, dressmaking, etc.