The product is a set of 5 refill ink bottles designed specifically for Epson EcoTank printers T502 and T522, as well as Workforce ET-4750 models. These bottles are compatible with Epson printers and are ideal for inkjet print technology. The set includes cyan, yellow, magenta, and black ink bottles, making it convenient for users to replenish their printer ink supply. Made in China, these refill bottles provide high-quality printing results for Epson printer users.