Everyone loves our cute pens and everyone gets sad when their FAVORITE pen runs out of ink. Plus, the pen goes to the trash and that's also sad. Well, it's time to STOP THE SADNESS. We have refills for your pens! These are 0.5mm gel ink refills, available in blue or black ink. These fit most of our gel pens with the exception being our retractable pens and some of the shorter designs. Changing the ink is easy-peasy too!