Composed of 4 small boxes packed in wood, plastic and sheet metal, formed as follows: -the bottom has an opening hole for the exit of the queens-two wooden sides are arranged for attaching the waxy sheet-front has a removable transparent plastic-in the back has a removable stretched net-the top wall consists of a small feeder and a space for being able to insert the royal cells. The roof is covered with sheet metal; on the bottom are recessed the 4 outlets (one for each core), with 4 different directions. External measurements: mm 325x205x283