12 Pieces Pen Refills Blue Ink 1.0mm Medium Point Metal Ballpoint Refill Smooth Writing Pen Refills Replacement Refills for Retractable Ballpoint Pen School Office Supplies (Blue)

I have an old tac pen that finally needed some new ink cartridges. It normally takes Parker cartridges but with the price going from 2 dollars to 10 I felt that it was time to find a substitution. These cartridges get it done, they fit perfectly and the ink writes well. The only issue that I had was the rubber that they place over the nib can be very hard to get off. Other than that they are great. Why pay 10 dollars for 1 when you can get 12 for 5. It's essentially the same thing.

Just received my refills. 12 Parker jotter refills for $6 is one heck of a price. I just tried one in my pen and the fit is fine and the ink appears to flow smoothly. I am very satisfied with the purchase. The only question will be durability - how long will the ink flow, will it continue flow evenly and will the cartridge leak. For now, I'm very happy with the first of twelve. I will update when, and if, things change.

I'm a bit of a pen phenatic and I must say, these have really good ink flow, nice blue color, and they write surprisingly smooth. Just what I needed.

WORK FINE, SEEM TO BE IDENTICAL TO ORIGINAL. GREAT PRICE

I’m very pleased with these ink replacements. My company gave me a pen I actually like and I was disappointed when the ink ran out. Thought I would give this a try, wasn’t sure if it would fit or not. They are easy to use and write great. They actually fit in several pens I had around the house. I recommend them!

Better than expected. Very smooth and consistent. Will buy again.

The economical way to stick with your most useful pens. We all have the pens we like to use and depend on and we know the reasons why. They are personal. So, if they run out of ink with these refills it's just a matter of unscrewing the top removing the empty and dropping in the new cartridge. And then, screwing the top back on and you are ready to work again - just that fast. Even the prices are quite reasonable for the convenience. I recommend these refills !

The ball that protects the ink doesn’t come off easy. It sticks at the tip and takes a little doing to clean off. But once that is done it is great ink.