Take4Less 4-pack Q3960A Q3961A Q3962A Q3963A Remanufactured Laser Toner Cartridge for HP2550 Laser Series (B,C,M,Y) Remanufactured under strict standards and will meet or exceed expensive OEM formulations. 90 day Factory Warranty against defect Individually Factory sealed in retail packaging. Sold by Take4Less Fits Models : HP2550 Laser Series