This large fountain pen features semi-transparent blue acrylic on the body, with accenting solid shiny black acrylic on the end and cap. The pen is an eyedropper filler with a shut-off valve mechanism that prevents the ink from leaking or dying up.
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)