Extract and handle royal jelly with precision using our Royal Jelly Pen. This pen is a tool that can be used to collect and dispense royal jelly from the queen cells, and to feed or store the royal jelly. The pen has a plastic tube that can hold up to 10 ml of royal jelly, and a metal tip that can suck and release the royal jelly. The pen also has a plunger that can control the amount of royal jelly, and a cap that can seal the tube. The pen is easy to use and clean, and can fit any size of queen cell. Use it to harvest and utilize your royal jelly.