Introducing the PI Di.

This model was uploaded at precisely at 3:14 pm Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT) on March 14 (Pi Day).

Roll the di for fun facts about Pi, including the beautiful symbol itself, the number 3.14, and four formulas to help you measure circles, including the formulas for circumference, diameter, radius, and area.

Download it now. Don't be afraid to di.