Laser Tek Services&reg; 4 Pack Black Toner Refill Kit for the Brother TN-450 (TN450), HL-2130, HL-2240, MFC-7360N Kit comes with 4 Bottles, Easy Instructions, Funnel Cap, Latex Gloves if needed; Toner Wipes- These cloths are chemically treated to attract toner dust Works in the following printer models: Brother TN-450 Brother TN-420 Brother HL-2230 Brother HL-2240 Brother HL-2270DW 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!!! | The Use of Laser Tek Servicescompatible products will not void your printers warranty.