Laser Tek Services&reg; 4 Pack Black Toner Refill Kit for the Canon FX4 FX-4 1558A002AA Fax L800 L900 LaserClass L1000 8500 Kit comes with 4 Bottles, Easy Instructions, Funnel Cap, Latex Gloves if needed; Toner Wipes- These cloths are chemically treated to attract toner dust. Each Bottle is good for at least the same page yield as a new cartridge, usually a bit more. Each Bottle is good for at least the same page yield as a new cartridge, usually a bit more. Product Comes with a 1 year 100% Satisfaction Guarantee! Laser Tek Servicesoffers free technical support for any questions you may have. Save big each time you refill and GO GREEN!!!