Pipe Type Bee Queen Catcher is made of quality plastic and sponge, durable. Easy to use, You only need to find the queen bee, open the sponge plug, and then put the queen bee in, which can protect the queen bee from harm. It is an essential tool for beekeepers. For an undisturbed examination of the queen and also for introducing the queen and attendants into postal cages. Remove foam and place glass over queen/workers, hold upright. They will walk up the glass. Remove rubber bung and place over the hole of the postal cage. Replace foam and blow through the foam. The bees will rapidly enter the postal cage.