4-pack of the most popular type of plastic bee feeder for beekeepers; it makes feeding bees water or sugar syrup easy for the beekeeper, an essential part of your supplies. Fits most Langstroth bottom boards including Mann Lake, Flow Hive, Honey Keeper, Dadant and nearly every other beekeeping supplier SAVE TIME AND MONEY: Save time by placing 2 entrance feeders in the entrance of one hive for twice as much food with half the effort; save money by using your own jars and pairing them with the lids included CLASSIC DESIGN WITH MULTISTEP ENTRANCE: Also called a boardman entrance feeder or front feeder, it can be used at the entrance of most beekeeping equipment manufacturers or inside the hive as a top feeder; each plastic feeder base and lid measures 5.5" long, 3.25" wide and 7/8" tall FITS MOST JARS: Hive feeders work by screwing a filled, common small mouth canning type jar onto the included lid and inverting the tray as the vacuum pressure in the jar keeps the syrup from dripping out of the holes. Not all jars are made the same so test the lid until multiple jars to get a tight seal. THE STANDARD FOR BEEKEEPERS: Very easy to use and beginner beekeeper friendly as you can easily monitor the syrup levels from the outside of the beehive; the optional and removable snap-in bottom makes it easier to clean and remove the jar lid