PILOTG2 Gel Ink Refills, Fine Point 0.7 mm, Black, Pack of 6

great choice for replacing ink and not your favorite pan. the ink quality is great.

As described...

Fantastic Pen refills. It is much cheaper to keep the pen's body, and use refills later.

If you’re a lefty be careful, the ink doesn’t dry as quickly as some would think., so unless careful you might smudge what you’re writing

Keep the plastic out of the landfill. If you already love Pilot G2 pens, stop throwing them away when they run out of ink. These refills are so much easier and cheaper.

We've been using these refills for many years with total satisfaction!