A digital illustration of colorful, glowing circles and geometric lines on a dark grid background, resembling a high-tech or futuristic interface.

Finally, a whiteboard compass that works!

The solution for geometric constructions on whiteboard surfaces

person writing on whiteboard using goround for geometric construction
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the center point does not slip

maintains its radius

simple and intuitive to use

Why goround?

A woman with curly hair and glasses making a circle on a whiteboard with a purple marker.
A woman with glasses and curly hair is drawing on a whiteboard using a purple marker and a ruler-like tool called a goround.

Intuitive and Designed for the Job

Stick your finger through the anchor hole and onto the whiteboard to keep your center firmly in place.

Pick a guide hole and confidently draw your circle. Use the straight-edge of the goround to draw a radius, a diameter, a chord, whatever you need.

Students have been using the goround cousin - the flat ruler - since their early days of school. This is a familiar tool to them!

A woman with curly hair and glasses drawing a chord across a circle with purple marker on a whiteboard, using a ruler-like tool called a goround.

Simple, Light, Durable

Made of approximately 2mm thick acrylic, the goround is light and flexible but not prone to (unintentional) breaking.

The goround is 40.8cm (about 16 inches) long. It’s designed to work effectively on a standup or desktop whiteboard.

By the numbers

A diagram with dimensions and hole measurements for a goround compass, a straight edge for geometric constructions, showing 25 holes with 5mm diameter, 2mm apart, and specific spacing details.
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