I searched a long time for the right fountain and rollerball pen hardware for my customers; and my patience was finally rewarded when I found just the right sort for my Little Kennebago pen. This style has a very smooth screw on cap that also will screw onto the back of the pen while you’re using it. The fountain pen has a medium point German Iridium nib and comes with a cartridge inside the pen and a pump is included, as well - just in case you would like to use your own special ink. The photo on this page is a closeup detail of the top and bottom ends of this particularly handsome pen.