Non-OEM, (4 x 100ml) Bulk refill ink for Lexmark inkjet printer 4 colors db2ink@yahoo.com Total 400ml ink(black, cyan, magenta, yellow) and 1 long needle syringes. No refill instruction. This ink is produced in dustless workshop & with third time filtration, particulate at size in 0.2. So the nozzle won't clog. This ink is Anti-UV dye ink, which can resist against sunshine so that printings can last longer in color. This ink was made with the color paste from USA and the chemical additive/formula supplied from Germany and Japan. Made in China. 100% compatible with Lexmark printers. Each 100ml ink = 5~7 cartridges.