Laser Tek Services &reg; 4 Pack Black Toner Refill with reset chips for Dell 1720 1720dn 310-8707 310-8709 310-8706 GR332 Kit comes with 4 Bottles, 4 reset chips, Easy Instructions, Funnel Cap, Latex Gloves if needed, and a Toner Cloth Wipe Ships Directly from our warehouse within 1 business day! Each Bottle is good for at least the same page yield as a new cartridge, usually a bit more. Great phone support with Laser Tek Services, not usually needed, but if you need it we are there for you. Save big each time you refill and GO GREEN!!!