A diaphragm to isolate the queen bee.Use with beekeeper.

Size: 20.1 x 16.5 inches (51 x 42 cm); Gap Width: 0.1 inches

The back of the product is shown on a green background to make the product easy to understand.Item comes in white.

The queen bee will not come up in a recessed box, and the upper tier is a storage room and the lower level is a nursery.

The diaphragm eye can only pass through the bees and allow for efficient cleaning.

If the queen is small or damaged due to impact, this product cannot be used for other products.