Boston Warehouse Udderly Cow Mug 20oz This Udderly Cow mug is the perfect way to get your day moo-ving with a cup of coffee, tea or hot chocolate. This mug holds a generous 20 oz. of your favorite beverage. Its comfortable handle accommodates hands of all sizes. Silicone gripper feet prevent slipping. Made of ceramic, this mug meets all requirements of the FDA; hand washing is suggested. NEW