Lamy Fountain Pen Ink Cartridges, Black/Blue Ink, 4 Packs of 5 Cartridges (LT10BKBL)

Lamy has always made good quality products and this ink was exactly such. The ink itself is a very dark blue that can be seen if viewed with ample light on a white sheet of paper. It flows like water which is what you would want in an ink and it leaves no residue after drying up. In addition to being good quality, it also won't dry a pen up completely if left for a long period of time after I had left my pen unattended and forgot to drain the ink. Overall its a pretty good cartridge for your Lamy pen and for your wallet as its cheap and OEM so you dont have to worry about quality.

It works perfectly in my Lamy. Blue Black is a nice signature color

For the Lamy pen.

I could buy a bottle of ink and the method to refill a reusable cartridge but I like the ease and simplicity of just switching out the cartridge and this is a good color. I keep buying more as needed.

Everything looks to be in order, however, I bought the Black/Blue combination, but instead recieved 4 packs of just Blue. While not a huge problem, it wasn't what I expected, and will require repurchasing more Black cartridges.

Its Ink, well Ink cartriges, to be more exact.

Already known quality from Lamy. Good pricing.

I got hooked on using the LAMY pen products when I bought my first one in Germany on a trip in 2016. I have quite a collection of pen colors in both the fountain & roller ball pens. It is more convenient to use the cartridge refill than the convertor and I especially like the blue/black ink color. I am in the medical profession so must use the darker ink but didn't want pure black. The blue color is good for legal document signatures according to our legal team. You can always tell the original that way.