Schmidt635 Mini D1 Ballpoint Refill Medium, 4 Pack, Black (SC58149)

I purchased these 2 little pens 20 years ago and I love them. They are teeny and fit in my wallet perfectly. They FINALLY ran out of ink and I had no more cartridges. I attempted to purchase a couple others but they were wrong. Then I found this seller. They came fast and were packaged perfectly. I love how they write and YAAY!! THEY FIT!!! Now my cute little pink pens are back in my wallet where they belong and thanks to this seller, they will now live forever. haha :) Best part of the transaction was the lovely little note that the seller included in my package. He included several little inserts for his business and thanked me for ordering. That was really nice. They have super fun things in their store so I have some good ideas for Christmas gifts. I appreciate when sellers go that extra mile to let me know I'm appreciated. Good business, good products, good customer service!! HIGHLY RECOMMEND!!!

These work great in my pen for my office. Never had an issue with the ink refills. I added this to my subscribe and save and purchase every few months.

Bought this specifically to replace the dried out ink cartridge for a lego pen. This is a pen that has lego pieces that kids can customize on the top.Writes clearly and as expected for ball point pens.

Being a lefty, I'm a stickler for ink. As far as smearing goes, this ink is ok but not great. It's fine for casual notes but definitely not my favorite for long writing sessions.Just make sure compatibility works for you. In my case it did with an off-brand imported titanium pen, so I was lucky.Though it isn't perfect, for my particular pen this is the best ink I've found so far so I'm happy to make due with it for now.

The D1 refills I received were high quality and the price was quite reasonable.Package arrived within the promised time period but the time frame itself was a bit on the slow side. Luckily I was ordering in advance of need, so that wasn't an issue for me. But if you need your refills urgently, you might want to pay attention to delivery time frame and plan on getting them at the far end of that timeframe.

These work every time all the time unlike other refills of this size I have used in the past. Nice smooth flowing ink with no skipping. They fit my Troika Construction Pen Perfectly!

This is a strange size ink cartridge, so you may get a couple in the pack that will write for a couple weeks then quit. If I'm paying for 4 i shouldn't have to worry if any of them are going to function properly out of a new pack.I bought these for the Big Idea Designs mini bolt action pen.

I like the fact it was delivered next day. The package has 4 refills and fits perfectly in my Swarovski magenta mini purse pen. This is the second time I purchase refills for this pen. Label could be misguided; four refills the same color per package. Not one of each.