Eugen Herzog Bienenzuchtgeräte

HERZOG quality queen excluders

are very precise. Each intermediate distance is checked as to whether it is 4.2 mm.
The regularity of all intermediate distances is guaranteed. The used round bar is so thick that there is no risk of bending. The wires lay in sheets that surround the bar in the cross section on all sides like a bridge.
HERZOG quality queen excluders are not affected by temperature or variations in temperature. As soon as the queen excluder is installed, it adopts the temperature of the beehive, maintains it and is not identified as a foreign body by the bees.