Superior design: 2 oz capacity with interior graduation lines for easy identification; measurements at ¼, ½, ¾, 1, 1 ½, 2 oz., Barware essential: convenient pour spout facilitates smooth and easy pouring; precise and consistent measurements for exact pours to help you craft the perfect cocktail, easy to clean: to maximize the performance and longevity of your barfly products, hand washing with mild soap and warm water is recommended, but all stainless steel products are dishwasher safe. Avoid detergents containing bleach or heavy chlorination.