An essential for flair competition, the Exacto Pour precisely measures what a bartender considers: a 1/2 oz. pour, a 3/4 oz. pour, a 1 oz. pour and so on. Also a great item to keep the bar staff in check. Show them you care. Test your bartenders weekly or even daily. An over pouring bartender can cost a bar thousands. Complete 3 tube or 7 tube systems.