Plastic Pourers fit our pint bottles, quart bottles and clear32 ounce pour bottle and are used to dispense an even flow of snow cone syrup. Plastic Pourers are molded of an extremely soft flexible, plastic that will last indefinitely. Push the pourer into the bottle until it snaps to get a leak-proof seal. Rubber Dust Caps, Plastic Dust Caps & Pour Bottles are sold separately. If you want to know exactly how much snow cone syrup you are putting into a snow cone you should use the Measuring Pourer.