Schmidt 635 Mini D1 Ballpoint Refill Medium, 4 Pack, Black (SC58149)

Very happy with my refills. Works perfectly for my Swarovski chrystalline pen. Writes smooth with deep black ink. Very happy with my purchase.

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.

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.

I am very happy with these as a refill for my LEGO writing systems pens and glad I found these. They are not the absolute smoothest writers, but for the value and type of pen refill they are, it is more than adequate. The only critique I might have is that I would prefer the refills to come in a plastic case that is a little more durable and secure than the bag it comes in. Otherwise, can't go wrong with these if you need this size refill.

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!!!

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.

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.

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.