Replacement ink cartridges are only $5. There is no need to throw your pen away.
Here is a list of the ink cartridges available for the 725BCHP and M4BCHP:
BLACK –
SPR4F – Fine Point
SPR4 – Medium Point
SPR4B – Bold Point
BLUE –
SPR1F – Fine Point
SPR1 – Medium Point
SPR1B – Bold Point
RED –
SPR2F – Fine Point
SPR2 – Medium Point
GREEN –
SPR3F – Fine Point
SPR3 – Medium Point
BURGUNDY –
SPR5 – Medium Point
PURPLE –
SPR6 – Medium Point
BROWN –
SPR8 – Medium Point
TURQOISE –
SPR9 – Medium Point
SILVER –
SPRSL – Medium Point
