I've used replacement ink cartridges before and have been generally happy. Not this time though. The product arrived in adequate time, but I wish they would have never been delivered. Upon installing the cartridges in my HP printer the printer immediately gave an error code noting they did not recognize the cartridges and froze the printer. I did quite a bit of research on the error code and identified the problem. 123inkjets sent a cartridge that had the vent covered on the back and the HP printer could not identify or load the cartridges. This caused the printer to freeze and would not allow the cartridge to be removed. I was finally able to remove the cartridge and purchased new HP printers instead. Unfortunately, this did not solve the problem and the printer remained frozen. The only solution was to purchase a new printer. I reported this to 123inkjets and there response was we'll get back to you. Well, it's been 4 months and no response. Thank you 123inkjets for ruining my printer and for your exceptional customer service. You broke my printer and your response was NO RESPONSE. What a waste. Stay away from 123inkjets as their product quality control is terrible and they're response to their issue is to ignore you and never respond.