The Genuine Lexmark No. 44XL/43XL Multipack Twin-Pack (0080D2966) contains 1 x 44XL Black Print Cartridge (018Y0144E) & 1 x 43XL Colour Print Cartridge (018YX143E). The 44XL Black Cartridge uses a formulation of pigment based evercolor 2 ink which is water resistant & gives protection against smudging from a a highlighter pen.