Wax foundation with cells of 6mm diameter that will produce only drones. Using this kind of foundation in the brood chamber will guarantee producing drones. This is very helpful if you breed queens through artificial insemination or if you want to establish Varroa control as Varroa prefers drone cells. In this case, when the frame is complete and the cells are capped, you remove the frame from the hive.
Injected honeycomb foundation sheets of A quality from pure Greek beeswax. Place them in your frames as a base, so that the bees can then build them with their own wax.