The product is a 42ml quick-drying black ink cartridge designed for use with portable handheld inkjet printers. It is compatible with HP printers and features solvent fast-drying ink for high-quality prints. With a pulse width of 120-180mm and voltage of 9V, this ink cartridge offers quick-drying capabilities and is suitable for printing up to 1200 pages (5% of A4 paper). Perfect for the SG-HP-003 model, this cartridge is an essential supply for the latest version of handheld inkjet printers.