At the time of my purchase, the default provider offered by Amazon was Vivajo. I have received well within normal but not in the plastic cover that is on the photograph. I took many (black and blue) and they were in a little know plastic, all sent in an envelope a little thicker than a normal envelope. I wonder whether they are recycled or counterfeit ... On charging appears the same inscriptions that my original cartridge (the brand) but it's certainly not a proof in case of infringement. Anyway ... recharges the "work".
