If you're stocking your bar, you should do it right. While it's easy to free pour, using exact measurements will generate a better, more-even cocktail. It's like baking from a recipe versus going from memory. This professional double jigger is made of stainless steel with a polished gunmetal black finish. It holds both 1 and 2 oz. pours. The inside is scored to mark the 1.5 oz., 0.75 oz., and 0.5 oz. measurements.