ITEM NAME:5X Beekeeping Tools Beehives Plastic Round Beehives Nest Door Vents Bee Tool OZ Features: Bee hive box entrance disk is used on a box where there is a round entrance hole. Designed to adjust the size of the tap-hole in the hive and protect the beehive from the mouse attacks in autumn and winter. Protect the beehive from the mouse attacks in autumn and winter. Install it on the beehive to make it easy for bees to go in and out. Rotating disc used for controlling access to the entrance of beehives. Four access options: fully open, queen exclusion, closed with ventilation and fully closed. Specification:.Designed to adjust the size of the tap-hole in the hive and protect the beehive from the mouse attacks in autumn and winter. Bee hive box entrance disk is used on a box where there is a round entrance hole.