Set of Mongramm'd StemLess Sippers (21oz) Initial kolors are inverted on each glass. Monogramm sequence is usually: Middle/ Last/ First. Initial kolors are inverted on each sipper (as pictured). Lettering is vinyl material that is of great quality. These items should to be hand washed and treated with care. Great quality glass. They are sure to make your next party memorable. Great housewarming gift, kool idea for girls night out, bachelorette parties, birthdays or just a unique addition to your home glassware.