This core consists of a nest, 3 small doors on three different sides of the nest. It has 3 feeder covers, 2 larger ones (same as those in Nucleus hive T2), while the middle one is smaller; they are all paraffined, with central chimney and with special closure for the feeding hole during transport. A masonite sheet is placed on top of the coverslips; as a closure there is an electro-welded roof covering both coverslips. A sheet metal separates the two compartments. The wooden bottom has a hole in the center covered with expanded metal sheet for ventilation. METHOD OF USE: You must open the frame and replace it with a frame inside the Beehive. Leave it long enough for your family to allow the brood to settle and transfer it to the Nucleus hive free work along with some bees. They, noting the absence of a queen bee, will make their own cell. For each frame you need to repeat the same procedure. At the end of the treatment you will have your 2 mini-nuclei with fertilized queen. Only recommendation: keep the Nucleus hive 3 km away from the apiary or closed 2 days.