TFI Pi Day tote bag

Funny Pi Day tote bag featuring the slogan "TFI Pi Day".

Pi Day happens every year on the 14th March (which happens to coincide with Einsteins birthday) or as they say in America, 3/14.

As Im sure you know, the first 3 digits of pi are 3.14.

Incidentally, also watch out for Pi Approximation Day on the 22nd of July, or 22/7 in the day/month day format.

If you like this funny maths bag, be sure to check out our full range of maths tote bags, sweatshirts, t-shirts, hoodies and mugs!