The product is a 4-pack of compatible ink bottles designed for use with various Epson printers. Specifically, it is compatible with printers in the EcoTank series, including models such as ET-2850, ET-3830, and ET-2988. The ink bottles come in cyan, yellow, magenta, and black colors, making them versatile for a range of printing needs. These bottles are manufactured in China and are ideal for those looking for a cost-effective and reliable printing solution with high-quality results.