In this video, we learn how to refill ink a pocket brush pen with Henry Lee. First, mix water with the ink, depending on the color of ink you want. After this, you will take the pen and soak it in water, then into the ink. Turn the knob on the handle as you do this so the ink starts to infuse into the pen. To get more ink in, point the brush to the sky and turn the knob slowly to drive the extra air out of the pen. Then, dip the pen into the ink and turn the knob in the other direction. Continue to do this until the pen is filled with ink, then you can use how you prefer!