This Krome Double Jigger is made of durable stainless steel, this jigger is easy to clean and won't corrode when used with acidic ingredients.On one side, this jigger measures out 1 oz. other syrup flavoring, and on the opposite end is a 1/2 oz. jigger -no need for a second measuring utensil. Perfect for any bar, restaurant, or home, this dual jigger will make your drink mixing much more consistent and exact!