Refill your printer cartridges with ease using these premium black dye inks. This set includes two 100ml bottles of high-quality refill ink compatible with various HP Smart Tank printers such as the 355, 450, 455, Plus 551, Plus 555, Plus 558, Plus 559, Plus 571, Plus 655, Plus 658, and Plus 7305. Replenish your ink levels conveniently and economically with this refill solution. The inks flow smoothly, delivering crisp, vibrant prints every time. Refill kits like these help reduce waste and provide a cost-effective alternative to purchasing new cartridges. Please note that proper handling and storage precautions should be taken as outlined in the product warnings. With this refill ink, you can enjoy consistent printing performance while being mindful of your environmental impact.