Exactly what you'd expect for manuscript pen cartridges. I ...
356110
Exactly what you'd expect for manuscript pen cartridges. I did have some issues with it leaking in my pen, but that may be a result of my pen needing to be replaced.
4737870
Rather than pay Canon's rather ridiculous price for ink cartridges for my Canon MG5220 printer I opted for a set of these.  At least for me, the installation was exactly the same as for Canon's and went smoothly (if you spill ink I suspect you didn't follow the directions carefully enough, whether these or Canon cartridges).  All the electronic detection, etc works exactly the same as for Canon's (including the cartridge LED's).  Performance also matches Canon's in terms of longevity (I installed them over 6 months ago and they are only now running dry, certainly on par with the set of Canon cartridges they replaced).  Perhaps I'm a bit too picky, but my impression is that the color image quality is a tad less vivid than Canon's; however, it is certainly plenty good enough for everything except perhaps photograph paper (and besides, I think HP has better printers for doing photographs).  Since almost all of my printing needs are routine, I will unquestionably be going with another set of these when they run out, which is probably the best recommendation.
4535051
These pens work perfectly and they are much cheaper than buying them from a store. So what more could I say?
856865
TN360 works for both my copier and printer.  Dependable and consistent high quality.  You get what you pay for.  No regrets.
3946490
I'VE RECEIVED THESE CARTRIDGES BEFORE AND AM VERY PLEASED WITH THEM.
4817984
My printer recognized these as re-filled cartridges, accepted them immediately, and they've worked like a charm.  Regular printing is excellent, and several pages of copies which included large black background areas came out solid, solid black.  Beautiful.  At this rate I'll never need to pay for new cartridges again.
1127174
Label cartridges. They are what they are. They fit, they work well, they are just as they should be. Period.
2125040
Starting writing with my old typewriter again recently and needed new ink cartridges. They work perfectly and ink is dark and easy to see on the page. Highly recommend.
4569605
Nice, simple steel bookends painted black, well suited for large heavy books. Exactly what you'd expect.
4050547
They are exactly what you are expecting them to be, thin pieces of plastic that have enough of a lip above the cards that you can see a division between whatever your are trying to divide. If you have a thin sharpie you can write on them easily enough. Works as intended and I'll likely buy some more in the future.
886144
The refills are what I was expecting.  Smooth lines and a velvet black ink.  Wish packages contained blue and black refills.
4127192
I purchased this 4-pack of ink cartridges for our business' fax/printer.  It gets a lot of activity (and uses an obscene amount of ink), so I've always been looking for less expensive resources for cartridges.  The standard office supplies stores are a complete rip-off.

First off, these cartridges worked fine for us.  I did not notice any reduction in quality compared to the original manufacturer cartridges or any of the standard re-manufactured varieties that we've tried.  However, I can tell you that we definitely got FEWER printed pages from these particular ones.  In general, we have been able to expect anywhere from 10 to 14 days of use from our previous cartridges, but we went through 4 of these in less than a month's time - averaging about 7 days each.

So while it's true that these are "compatible" with HP 27 cartridges, I have my doubts that they are filling these things to capacity because they do not match the page output of the other brands.  I'll leave it to you to determine if this is intentional or not, but it would explain why they're so inexpensive...
4511495
not much to say, it's a refill for very nice pens.....it writes!
4915902
Sorry, I can't tell you how well the ink in these cartridges works, I didn't use it.  Many other reviewers seems to like it, so its probably pretty good.

I bought these for the actual cartridges themselves.  I already have ink.  Lots of&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/ink/dp/B00CKQQYBQ/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">ink</a>, that I&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/like/dp/B0013D2XYY/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">like</a>&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/very/dp/B001GF5RTW/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">very</a>&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/much/dp/B002KJQO86/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">much</a>.  I needed something reliable with some capacity to get it to my pen.

These cartridges fit the bill quite nicely.

I favor Jinhao pens.  Currently my favorite is the Jinhao 500, aka Gullor 500.  Great pen btw, ridiculous bang for your buck.  The 500 comes with Jinhao's adequate plastic ink converter cartridge.  I subbed in their nicer metal ones, which works equally well, but still left me filling the pen way more than I liked.

Enter the Waterman Standard Long Cartridges.  At about a quarter inch longer than the Jinhao converter, it easily holds several times the ink of the Jinhao converters.

It perfectly fits my&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Jinhao-500/dp/B014LALEHM/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Jinhao 500</a>&nbsp;(tested),&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/8812/dp/B00JKMVI50/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">8812</a>&nbsp;(tested),&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/750/dp/B01440TE62/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">750</a>&nbsp;(tested) which means it will fit its sibling&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/450/dp/B00CC72GQ0/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">450</a>&nbsp;(not tested),&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/599/dp/B00JEVNGC0/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">599</a>&nbsp;(tested), and 675 (tested),&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/950/dp/B00CBTDZVY/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">950</a>&nbsp;(tested) which means it will fit its sibling&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/650/dp/B00CDIOXLE/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">650</a>&nbsp;(not tested).

In other words, if you have a Jinhao pen, chances are pretty good these cartridges will fit it (not tested)
534484
I adore these.
Got them 6 days earlier than expected, safely and well packaged, nothing missing, all 9 pens here and working, exactly as pictured.
Lovely dark ink that dries quick and doesn't bleed. (I find these have a nicer darker colour ink than faber castell pens of a similar type)
Perfect for manga inking and drawing in general.
Worth the money.
894851
These things are priced right and do the job just fine. Granted, you're not getting super high quality ink here, but if you're expecting a Brother machine that these will fit into to give you print shop quality, you're never going to be happy. I use these ink carts in my business printer for generating invoices and general office printing needs. I bought another set for my home printer so I'm set when those ink carts run out too. Just a word of advice: when installing the ink switch override tool, if you fiddle with it for a long time and can't get it, try the other one. I tried to follow the photo instructions (not great) and could not get the tool to engage the switch. I grabbed the other ne that came in the kit and had it set in 2 minutes. I guess there is something to be said about using the right tool for the job...
882764
Second purchase of these cartridges.  Perfect, economical choice for small home printing projects.  They include a postage-paid return envelope to send back your old cartridges for recycling.  Will buy again!