The product is a 4-pack of compatible black toner ink cartridges for use with printers that require the 26A model. Made by E-Z Ink, these cartridges are designed to provide high-quality printing results. Each cartridge is filled with black ink, ensuring crisp and clear documents or images. The unit quantity of 4 pack allows for extended printing capabilities without the need for frequent refills. Compatible printers can benefit from this cost-effective and reliable printing solution.