Queen fertilization hive in wood (2.5 cm thick) with two compartments. With 2 front and back entrances, divided by a removable sheet metal separator, each compartment is equipped with 6 frames 1/2 nest D.B. interlocking, complete with feeder honeycomb cover with insulating panel, anti-varroa bottom with removable bottom plate, single wooden roof covered in sheet metal. DIM.: Width. 28.5 - Length. 50cm Complete with 12 interlocking half-nest frames (code PI 45/FE) Once removed, the central sheet metal separator transforms the hive into a normal D.B. hive. with 6 nest frames, composing two 1/2 nest frames