This Lexmark valuepack consists of one black 18C1530E cartridge and one colour 18C0190E cartridge. The 18C1530E is often referred to as the Lexmark Number 3, No. 3 or #3 and the 18C0190E is often referred to as the Lexmark number 2, No. 2 or #2.These 18C0190 / 18C1530E cartridges have been recycled from empty original Lexmark cartridges and has been fully tested and as such come with a 100% satisfaction guarantee.In addition to being a lower cost these remanufactured cartridges have the added advantage that they represent a more environmentally friendly way of running your printer.