These are 6mm and 7mm entrance spacers for Japanese honeybee stackable beehives. By placing them on the 4 corners, you can easily create an entrance that allows bees to enter and exit from 4 directions. Screw holes are also provided, so you can fix them to the bottom board. (Please prepare screws separately) *Beeswax boxes are not included* Set Contents 6mm Spacers: 4 7mm Spacers: 4 Total: 8 #JapaneseHoneybees #StackableBeehives #Honey #Kinryohen