36 Pcs Refills Uni-Ball UMR-1 For UM-151 0.38 Roller Ball Pen Blue Ink

well im giving this two stars because it works. its rough and bites the paper alot, that might be because of its small size but gel refill come in very small sizes and are meant to be small for drawing. im not expecting super smooth lines as this is a gel refill, but gel refill should have many colors this only has black, blue black, blue, and red if im correct. so if im using a horrible writing refill i at least want it to be in a nice color. alot of people have said that these dry up and stop working quick.there are many downsides to this refill but not any upsides as i see. there are many better options

I have used this refill several times and each time the pen stops writing after no more than 20 times writing. I have tried many different methods to get the ink flowing again and nothing has worked. It is a total waste of a refill and was hoping that after several times the refills will work. I am trying other UNI refills and hope they will work (0.5 and 1.0) but don't really have much faith these will work either. The UNI Style Fit refills on the other hand are amazing and I've had no issues at all with these.

Performance:10Quality:10Suitability:10Excellent products, as always. Was not able to pic but they are legit every time. A proud frequent customer. Thank you, Itolife!

Very nice. I must admit, the 0.28 is wonderful--but at times the ink will seize up on these and the tip seems to scratch along the page. But--what else would one use? These are the best. I mean, I haven't tried everything, but other than a rotring rapidograph, I haven't been able to find anything with smooth flow. And you know the myriad of difficulties that come with the rapidograph. Not for everyday use. Got to go with this <$2 refill and the ,$3uniball pen. This and the .38. Can't go back to a normal (gasp!) 7mm. Shuddering to think about it. Peace out, signo.

I bought 4 ink refills from JetPens and I’m reviewing them as a group. I’m not going to say what kind of pen I’m using because I’ve modified it to take these kinds of refills and I don’t want to make people think these refills will fit an unmodified pen. I’m shocked at how poorly these refills performed in general.Platinum GSP-80N - https://www.jetpens.com/Platinum-GSP-80N-Gel-Pen-Refill-0.5-mm-Black/pd/5282Very good right out of the gate. Smoothest writing, almost like the ink is grease, zero friction on the page, Clean black line. This is my favorite refill out of the bunch. The other review on this refill is very negative so I’m waiting to see how this holds up before ordering more.Zebra Sarasa dry JLV-0.5 - ... MoreI bought 4 ink refills from JetPens and I’m reviewing them as a group. I’m not going to say what kind of pen I’m using because I’ve modified it to take these kinds of refills and I don’t want to make people think these refills will fit an unmodified pen. I’m shocked at how poorly these refills performed in general.Platinum GSP-80N - https://www.jetpens.com/Platinum-GSP-80N-Gel-Pen-Refill-0.5-mm-Black/pd/5282Very good right out of the gate. Smoothest writing, almost like the ink is grease, zero friction on the page, Clean black line. This is my favorite refill out of the bunch. The other review on this refill is very negative so I’m waiting to see how this holds up before ordering more.Zebra Sarasa dry JLV-0.5 - https://www.jetpens.com/Zebra-JLV-0.5-Sarasa-Dry-Gel-Pen-Refill-0.5-mm-Black/pd/15646Very good, very smooth. But the ink line seems to get wider as you write, like it’s letting out more ink as you go. As the line gets bigger it’s thicker than the other refills in this group. After minimal use, the ink bled out where the plastic tube meets the tip and made a mess of my pen. Won’t be buying this again.Pentel LRP5 - https://www.jetpens.com/Pentel-EnerGel-LRP5-Permanent-Gel-Pen-Refill-0.5-mm-Black/pd/24908Not great. The ink delivery is inconsistent so the line has some patchy spots now and again. At home, the only refills I can get at a brick and motor store are Pentel. They weren’t great hence my search online. Not sure why I thought these Pentel ones online would be any better but now I know.Uniball Signo UMR-1-05 - https://www.jetpens.com/Uni-ball-Signo-UMR-1-05-Gel-Pen-Refill-0.5-mm-Black/pd/3260Based on the dimensions given this should have fit my pen but didn’t so I didn’t use it. The distance from the point to where the diameter gets fatter is too short compared to the rest of these (hard to explain without a picture).

My favorite pen and pen refill. I love the feel of these pens on paper and for me they're perfect for quick sketches and note taking. I like to keep a light touch, so these pens are great for solid lines with barely any pressure. They do smear if you run your hand over them if you don't let it dry, but it doesn't take too long for the ink to dry.

I’m extremely specific about what pens I use and since I started using a signo Uni-ball i couldn’t go back! I tried finding refills elsewhere since the pens are so expensive, but every retailer only carries .38 mm and never .5 in black! I’m so glad I could find the right refills on this website (they work amazing as expected), and since it seemed better to just buy a few more refills to reach free shipping, I’ll have enough pen refills to last a few years at least lol

Oh my goodness. How happy am I to find an authentic refill for the uni-ball signo gel pens. They are my absolute favorite for note taking and every day use. I couldn't find them before so I kept repurchasing the same pen, which isn't very cheap! The ink is very smooth and they fit perfectly into the Uni-ball Signo DX 0.38 mm gel pens. I went ahead and purchased 7 of these and they shipped to my place in just 2 business days! I will continue to repurchase these from this site in the future.