天然草鋼筆替芯，藍色墨水

Didn't realize how much ink I was wasting until I grabbed a blue refill — it writes smooth with no skipping, and the non-SVHC detail on the ink actually put my mind at ease. Nice to keep the same pen going instead of tossing it.

Swapped in one of these refills and my pen writes like it's brand new again. The blue ink is consistent right to the last line with no skipping, and I like that it's non-SVHC too.

The blue ink flows really smoothly and hasn't skipped once in about two weeks of daily note-taking. Nice that the ink is non-SVHC too, so I'm not worried about whatever's in it.