These refills didn't last me the week. They run out so fast and are not worth the money. What a bummer.

These erasable inks are perfect for my work projects. They roll smooth and dry fast. Only downfall, the black ink is so light, it's more of a gray.

Great refills. I use the black and blue more often. I wish they come in multiple packs for just one color.

I like how less inky this is when writing on my Rocketbook pages. However, the scans don’t appear as bold as with 0.7 Frixion pens. But still appear on scan well enough. I will rebuy these because of the convenience of the multi pen. And again I like the less inky clean feel to it. Doesn’t smudge as much on Rocketbook pages. Everything arrived very neatly in my order.

I love this pen and use it all the time to mark up patterns when I'm knitting, so these refills are essential!