Difficult to know what to say about inkjet printer cartridges - everyone knows that they are all overpriced, and the ink runs if the page gets wet.
Given that, these ones do the job fine in the really-rather-wonderful (and cheap) HP Deskjet printers - I have had two now, and they are streets ahead of Del ones in the same price range, are easy to install, and last about as long as inkjet cartridges usually do.
A cautionary tale: my previous HP deskjet printer died in tragic circumstances when I bought cheap copies of HP inkjet cartridges from a company that advertises widely. At first the imitation cartridges printed all my photos in shades of green - quite artistic but not what I was hoping for - and then refused to print anything at all with any cartridges. I had to wave it a sad farewell at the local rubbish tip.
I'm not saying that this always happens when you buy cheap substitute cartridges - I'm just saying that it happened to me and cost me quite a lot of money. My advice is to grit your teeth, open your wallet, and always buy the manufacturers cartridges.