The Spacer 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. Also allows space for patties.
 
Assembly required, includes nails and easy to follow instructions.
 
WW239 - 10 frame Spacer Shim 18 7/8" x 16 1/4" x 3/4"
WW382 - 8 frame Spacer Shim 18 7/8" x 14" x 3/4"