TecUnite 20 Pieces 2.75 Inch Ballpoint Pen Refills for Diamond Crystal Stylus Pens with Black Velvet Bag Supplies(Black and Blue Refill)

Seems to be a good product Works as needed

I have some ball point pens that rotate to advance the refill out for writing. I carefully searched the images, and found this one looked the most like what was in the pen. They are a perfect fit! The company provides a great amount of both Blue and Black refills. So, my amazing rotating pens, especially the laser pointer ones that I cherish, will live on seemingly forever. They place a small dab of glue on the roller ball to keep the ink from evaporating there. Snap that off when uising for the first time, and the writing quality is wonderful. Thanks for supplying them at this nice price

I was surprised by how smooth and well they write, I have a small 3 in 1 pen and it is very convenient but never used it for serious writing only for short notes and jotting something down. Now with these refills, this little pen will become my true writing instrument! and the price for so many is awesome. I just got it and have no idea how long it will last yet,

These ink refills were a perfect fit for Cross Tech Pens. They don’t last as long as I would have hoped but for the price you can’t beat it.

Absolutely perfect, was looking for replacements for my Pen Gems brand pen and these are it! Would love to find them in more colors here on Amazon but will keep buying these for sure.

Okay refill but a little cheaply made

I was given a diamond pen during my company’s annual conference last year and it quickly became my favorite pen! I was sad recently when the ink started to run out! Since there was no way to replace the pen, I went on a hunt to find the refills! After disassembling the pen, measuring the ink, etc, I found these refills! They came in and were easy to replace in my favorite pen! I love that I now can switch it up and will have black and blue ink! So grateful that I can continue using my favorite pen thanks to these great and affordable refills!

Great value. Fits my Tombo pen perfectly. And they write smoothly. What more could you want, especially for the price.

i bought these refills for my hand made pens, and these are of good quality, and very reasonably priced, they are a perfect fit and easily changed, i cannot say anything about the life expectancy of the ink, as i have just purchased them, but at the great price they will be great 10/10. tony gray

La medida es perfecta para los tres bolígrafos que tengo de Swarovski!!! La calidad es muy buena, escriben igual que los originales y los recambios que compraba, volveré a comprar seguro, recomendable 100%

Ich habe einen Kugelschreiber von Swarowski, der leider eine neue Mine brauchte. Die hier passen perfekt und sind dazu auch noch günstig. Außerdem hat man direkt Vorrat. Das Schreibgefühl ist auch super.

rien à dire sur le produit

Esattamente ciò che cercavo, anche il tratto è chiaro e scorrevole.