The "Flaubert" tube for marking queens is useful for both beginning and experienced beekeepers when working with queens. Improved design of the tube - with a hole in the middle of the flask and centering of the piston. The piston moves smoothly only perpendicularly inside the flask, which is convenient for fast work, greatly reducing the risk of damage queen bee.An additional hole on the side will also add convenience to quick work when catching and releasing the queen bee into the family. The queen is pressed against the mesh with a soft pad, and marking is done through the mesh. Even a young and nimble queen can be marked without problems and without harm. After applying the mark, it is advisable to return the queen to the family in a protective cage to prevent bee attacks.