Plastic Queen Marking Tube
Holds and isolates the queen in place while you mark her with a marking pen (sold separately). Place the queen in the tube and gently push her against the plastic screen with the sponge plunger. You can then mark the thorax. A safe, efficient marking method. Marking a queen helps you to locate her so that you can safely transfer resources to other hives. You can also confirm that she has not been replaced.