Premium materials: Front bee feeders are put at the entrance to the beehive, the base made of strong plastic and the lid consist of aluminum can ensure long time operation, increasing bee hive feeders durability. Not all jars are made the same so test the lid until multiple jars to get a tight seal Fits for most mason jars: Aluminum caps are suitable for most glass or plastic mason jars in the 2.75-inch caliber kitchen. Simply twist our bee entrance feeder lid onto a mason jar, add the base, and leave it upside down. The bee feeder jar lid forms a vacuum and automatically prevents rapid dripping and enables continuous feeding Reasonable design: The back cover of this beehive entrance feeder is a highlight. Water and syrup will automatically drip on the back cover instead of immersing the hives, which makes it easier for bees to drink sugar water. At the same time, the removable design of the back cover makes cleaning easy Easy to use: This beehive feeder lets you easily monitor your bees and develop appropriate feeding plans. Unlike the top hive feeder insert, you get to observe the amount of food left and refill it without opening the hive Wide application: Beehive entrance feeder for spring build up or summer, beekeeping, bee feeder. This bee entrance feeder could slip water automatically save time and energy for beekeeping farmer. Now you have your sugar water bee feeder! The colony will bee drinking it up! Our bee feeders are a perfect companion to your bee hives and supplies starter kit