Give your next necklace collegiate personality with this sterling silver 5.6mm Greek letter bead featuring Mu. Mu is the twelfth letter of the Greek alphabet and in the system of Greek numerals it has a value of 40. This letter was derived from the Egyptian hieroglyphic symbol for water. Greek letters are used by sororities, fraternities, in math equations and more, so this bead will allow you to completely personalize all of your jewelry designs. The bright sterling silver ensures your designs will look and feel high quality and the letter is etched on four sides, so it is sure to be visible at all times.