Essential to the pleasure of malt scotch liquors and gins to artisanal tequilas, the Vinturi Spirit aerator releases hidden flavors, intensifying overall taste and enjoyment. Markings indicate 1, 1 1/2 and 2-oz servings to measure as you pour into the jigger. Press a button to open the magnetic valve. Liquor releases in the precise amount, adding the perfect mixture of air, to enhance distinctive flavors of spirits and liqueurs. Experience the difference with scotch, cognac, tequila, whiskey, bourbon, vodka, gin, rum, brandy, sake and liqueurs. Sleek sophisticated design provides perfect aeration in the time it takes to pour a glass. Acrylic. Dishwasher-safe.