Nikko T-99 Maru (Mapping) Nib
This is a Maru (Mapping, or Round) nib, containing a special reservoir. The reservoir stores extra ink, such that with one dip into your ink bottle, you can write at least three times longer than with a regular Maru nib! You can check the ink level by looking at the side of the nib, to make sure you don't run out in the middle of drawing a line. The nibs come in a convenient flexible plastic case that snaps shut, for easy carrying and storage.
A crowquill nib with a tubular base, used for drawing detailed lines including eyes, hair, and wrinkles in clothing.