DunBong Pen Refills, Black Ink Refill Pack of 5, Replaceable Ballpoint Pen Refills, Medium Point Metal Refill (Black)

Excellent writing ink! Excellent Seller! Fast Shipping! Excellent price! Thank-you! Happy Holidays!!

These are exactly what I needed and they write nicely

Quality

Great refill for a pen until it wasn’t. Second cartridge exploded in the pen but the pen was taken on flights so maybe it was the pressure? Not sure!

Producto tal y como anunciado, perfecto para mi boligrafo.

Received these refills quickly and they fit just fine in my twist-to-extend pens. The springs in my pens are still in good shape so not a problem having refills without the spring. I use one of the pens to write checks and have found the performance great so far in terms of line thickness, smooth flow and non-smear. It was good to be able to find refills at a reasonable price especially since it's near impossible anymore to find refills in stores.

I have ordered these twice, the first time 4 years ago, no issues, this batch (in 2026) are old and clogs up. Not the end of the world, buyer beware, it is annoying.

That's a "perfect" refill for my pen. When I bought this pen, it came with black ink, and I hate black ink. The pen manufacturer does not provide blue refills, so I was really happy to find this product. It works for the most part, but sometimes the cartridge fails and leaks ink, specially in very hot weather. As long as don't forget the pen inside the car on a hot day, or keep in in my pocket when I am outside for too long, it will be all right. Other than that it is a great product.

The items were exactly as described on the listing. Great product ! They fit the pen perfectly. This option was a lot cheaper compared to purchasing an “original” refill for the pen. 5 Stars for the product and service.

These refills work well and it was so nice to find blue ink refills. I was able to replace two different pens that needed refills. Would recommend them. Make sure you pull that little plastic bulb off the bottom. Ink flows nicely.

Good product.

Work well

Fit hood. Work good.