Uni-ball Jetstream Refill Cartridge 0.7mm

Customer service was so helpful. They sent me a video on how to change out my refill. I just bought my first pen gem and had no idea what I was doing. I sent an email and it was answered the same day!

These ink refills are a must have and they sell out quickly. I purchase them every chance I get.

These are my favorite ink refills! I get them whenever the black is in stock.