Castellated 11 Frame Spacer, for B.S. National, 14 X12, 20 Pack
Metal castellated frame spacers are used to reduce the number of frames in your boxes by accurately spacing your frames. The spaces are evenly cut to allow the bees to fully draw out comb. HD-250 nails available separately.
The picture is not the same as the item received, but they will do.
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B.S. National Brood, Wired, Premium Wax Foundation