摘要 |
A marker pen comprises a casing open at one end and including a fluid absorbent nib ("marker nib") containing a liquid or dye of a first colour. One end of the marker nib protrudes outwardly beyond the confines of the casing and the other end protrudes inwardly into the casing. The interior of the casing is adapted to receive a reservoir pen having a fluid absorbent nib ("reservoir pen nib") containing a liquid or dye of a second colour (which may be neutral, e.g. clear colour). When the reservoir pen is inserted into the open end of the casing, its nib makes contact with the inwardly protruding end of the marker nib (or a fluid absorbent extension thereof) whereby liquid or dye of the second colour can be donated by the reservoir pen nib to the marker nib. |