The 3/4″ 10 Frame Shim is designed specifically to improve brood chamber congestion, which in turn helps to reduce swarming. A Shim also aids honey production by providing an additional entrance/exit to honey supers. The shim should only be placed between supers with drawn comb or to create space for pollen/winter patties placed on top of frame bars. 10 Frame equipment.
*Ships unassembled.
