I adored these pens...at first. I absolutely love the 0.18 mm size and the lines it produces, but unfortunately the pens would stop working halfway through the ink supply. Every single time. I could not for the life of me figure out how to get the ink flowing again. It didn't matter which color. I only used one up completely out of the set 10 I purchased (8 in the set and 2 additional in black ink).

I'm obsessed with "thin" when it comes to writing. And these pens gave me a good few months before bailing on me. I've never gone back to 0.18 mm sizes as I ended up attributing the ink flow (or lack thereof) to the size.

These are by far my favortie pens!!!!!!

Super lovely pens indeed! Perfect for those who naturally write small since such a tiny point allows for a more legible text. The multi-colored pack is fun to use for just about anything: letters, lecture notes (since multi-colors allow for various codings and make important points stand out), crafting ... the list goes on. These pens make my text look much more elegant and refined next to my text written with a .4mm -- I'm hooked on these!

these pens are awesome!! i just got them and i love them! they are reakky good for writing small and writing big.... i have not experienced any scratchy feelings with them at all after using them on multiple surfaces! these pens are deffinetly a good investment!!! i did not get the pack cuz they were sold out at the time... but i got all of the colors in the pack plus some and they are really good!!!! they are smooth and never skip!!!!!! five stars!!!!

I just received my set of Uni-ball Signo bit 0.18 mm pens and I must admit that I love them! They are not a pen for everyday writing tasks; they are however great for special applications. It does take a little while to get used to writing with these pens and I find that it is best to write with then slowly. Overall they are a unique product.