Description Happy pi day, a pi symbol design for every pi mathematician teacher, or math lover student. This pi shirt women men and kids is perfect tee for celebrating the pi day on march 14th. Leggera, taglio classico, maniche con doppia cucitura e orlo inferiore Amazon Prices 36.93 36.93 1 36.93 25.69 11.24 Consult Consult Share Product Image Categories Moda > Moda > Abbigliamento specifico Brand: Happy Pi Day Shirt Gifts for Math Lovers Co.