The pen is an eyedropper filler with a shut-off valve mechanism.
To fill, unscrew the section, fill with the included eyedropper, and replace section. To write, simply unscrew the end blind cap, which releases the middle piston rod's shut-off mechanism. (video below)
- Stainless steel Bock nib
- Eyedropper included
- Length: 5.9 in.
- Diameter: 0.774 in.