Protractors

Helix Circle Ruler

12'' Circle Ruler features small circle templates in the clear center area to draw circles from 1/16th in to 12 in with gradations in inches and metric. Ruler can be used to draw a circle by simply placing a pen or pencil in the hole corresponding to the size you want, stabilize the ruler with the center disc and rotate in a circle with your other hand to draw the full circle.

• Draw circles from 1/16th in to 12
• Gradations in inches and metric

Helix Circle Protractor

Angle and Circle Maker is made of plastic. The layflat design easily fits in your binders and drawers.

• Two-in-one protractor and compass
• Built-in templates
• Can be used to measure angles

Staedtler

Precision made from the highest quality tinted plastic featuring a 180 degree 4" protractor 

• Tinted plastic
• 4''