The boardman feeder is designed to set in the front entrance of the hive. The bottom design has a slight crack to allow excess sugar water to flow to the outside of the hive and not flood the hive. The boardman feeder will accept the following small mouth jars: pint, quart, or 5 lb jar. Normally a hive will consume a pint of sugar water a day in the Spring, Summer, and early Fall seasons. The punched cap does come out of the feeder. Excellent way to feed your bees during the winter months without chilling your hive.