The empty refillable ink cartridge is specifically designed for Epson printers, including models such as WF-3620, WF-3640, and WF-7720. It offers a print technology of inkjet and comes in cyan, yellow, magenta, and black colors. This unit is compatible with Epson 252XL ink cartridges and is ideal for printers like WF-7620, WF-7110, and WF-7210. Made in China, this product provides a convenient and environmentally-friendly solution for printing needs.