PERFECT SIZE PAINT PEN FOR BEEKEEPERS - The 2mm marker tip or nip is the ideal size for safely marking a queen bee on her back, providing just enough paint to easily identify her but not allowing too much paint onto the queen.  FOLLOWS STANDARD QUEEN REARING STANDARDS - Particular colors are used depending on the year, but they do not have to be followed exactly, but it does make it easy to remember. Green for years that end with 4 and 9. Blue for 5 and 0. White for 1 and 6. Yellow for 2 and 7. Red for 3 and 8.  SAFE FOR QUEENS - The water-based, acrylic paint pen is the industry standard for marking queen safely with non-toxic paint. The paint has no side effects on the hive operation and bees and queens will continue to work. EASY TO USE - Shaking the pen back and forth will mix the paint in the pen and by pressing and holding the tip down, a small amount of paint will fill the tip just enough to mark the queen. Test the marker on a hard surface before using it on a queen. It’s important to just put the minimum amount of paint necessary to mark the queen. WORKS ON MULTIPLE SURFACES - Commonly known for marking queens, the Posca pen will work on wood, glass, metal, plastic, canvas, clay, poster board and any porous surface and the included cap will keep the pen from drying out. About Foxhound Bee Company: Foxhound Bee Company was started in 2014 in Birmingham, Alabama and is owned by Adam Hickman, an EAS Master Beekeeper. Our company is very knowledgeable about bees and focus on quality beekeeping supplies and equipment. We understand that beekeeping is very unique and the equipment needed is unique to the goals of the individual beekeeper. We love beekeeping, almost as much as we love helping new beekeepers get started in their new hobby. If you are ever in Birmingham, please come by to see us.