Happy Pi Day, March 14. (3.14)
This Diameter Tape Measure uses the ratio of circumference to diameter of a circle, which is pi, or 3.14. Hence the significance of today, 3/14 (March 14).
To celebrate the occasion, you can give your friends an apple “pie”, but there is a more appropriate gift. That’s the Lufkin diameter tape measure. It makes finding the diameter of a pipe, by wrapping it around the circumference.