Laser Tek Services&reg; 4PK Toner Refill with chips for Samsung CLP-300N CLX-2160N CLP-K300A CLP-C300A CLP-M300A CLP-Y300A Kit comes with 4 Bottles, 4 reset chips, Easy Instructions, Funnel Cap, Latex Gloves if needed, and reset Chips 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!!!