PEN OR FELT PEN CAPABLE OF USING A PLURALITY OF COLORS IN ONE PIECE

摘要

PURPOSE: To provide a fluorescence pen, sign pen and felt pen capable of being carried with ease, saving the space of the pencil case, changing colors simply, and using a plurality of colors in one piece. CONSTITUTION: A cap part B3 is provided on the rear part of an ink reservoir part 1, and a plurality of them are combined together in series.