Specifications: Material: Plastic Color (optional): Red/White/Pink/Orange/Green/Blue/Purple/Yellow Pen Length: Approx. 14.2 cm Quantity: 8 pcs Features: 1. This marker pen is water-based and easy to wipe off 2. Perfect for marking your new queen bee for easy detection 3. Strong coverage and rich colors 4. Smooth use, durable and long life. 5. Quick and labor-saving, practical beekeeping tool. This marker pen is perfect for beekeepers to mark queen bees, so it is easy to quickly identify the queen bee. We have 8 colors to choose from, choose your favorite color for your queen bee. Package contains 8 pens Note: Due to lighting effects and shooting angles, there may be some color difference, please understand. There is a tolerance in product size due to manual measurement.