Feature●The Original Leopold Jigger●A Cocktail Kingdom original inspired by vintage jiggers of the 1930s●1oz (30ml) over 2oz (60ml), with ¼oz (7.5ml), ½oz (15ml), ¾oz (22ml), and 1 ½oz (45ml) markings on the inside.●Accurate and consistent.●Copper-Plated / Plated items are not dishwasher safe.Description Copper plating over 18/8 stainless steel . NOT dishwasher safe.