The fastest and easiest way to pour an exact shot! Fasten the Posi-Pour bottle spout on top of your liquor bottles for a quick measuring of 1-ounce or 30 ml. The party will be started in no time! The pourer's durable clear and black plastic construction will provide long-lasting use and will fit most bottles. The spout allows accurate portion control for liquor, oil, vinegar, syrup, or cooking sherry. Perfect for the bartender or gourmet cook! Maximize control with minimal leaks to prevent waste and mess, while assuring proper amounts for balanced recipes and delicious drinks. Cheers!