uni-Ball UMR-10 1.0mm Gel Pen Refill | Usable for UM-153S | Blue Ink, Pack of 12

Smooth handwritting & quality are perfect

"I've been using this product for years, and while the replenishment costs are slightly higher than the wholesale market price of Rs. 50 per unit, the exceptional quality and performance make it well worth the extra cost. The ink flows smoothly, making it ideal for those who prefer bold handwriting. The writing experience is remarkably smooth, and I highly recommend it to anyone who values quality over cost."

Excellent quality, goes for long and smooth to write

Buyers must note that this is a 1 mm refill and not 0.1mm needle tip. Ink flow is good and makes bold writing. Great comfort. The refills can get empty faster if you are an avid writer. Not really a long lasting ink.

First, these refills were made in Japan. Second, they are NOT 0.01 mm as given in the title and description by the seller. That would be an ultrafine thinness. Instead, they are 1.0 mm. I hesitated ordering the item, but took a risk, and I was rewarded by a thick, smooth-flowing ink. Wanted a refill for the Japanese UNI-BALL UNSGP153SBK3 Signo Gel, and am extremely happy with the product. I hope the seller will change the description. It is a pleasure to write with this refill. I'm glad I don't have to throw away the old pen. I hope the ink in the remaining 11 refills do not dry up by the time I get to use them--that is the only concern I have--though I don't expect that to happen because each of them comes in a tightly sealed plastic pouch, and have a protective nub on their nib ends.

Very good

They are superb. The catalog mentions incorrectly 0.1mm, it's actually 1.0mm.Only downside is that they are depleted within 3-4 days, and the refills are a bit expensive than ordinary ones. 6X expensive but definitely worth its while :)

Good