This is a lot of four LD Toner Cartridges for Dell 2150/2155 series toner cartridges, including black, cyan, magenta, and yellow cartridges. These cartridges are designed for use with Dell laser printers and have a unit quantity of one. They are compatible with Dell 2150/2155 models and have a print technology of laser. Each cartridge has a capacity of 1200 pages.