Laser Tek Services &reg; High Yield Toner Refill Kit 4 Pack Compatible with Samsung ML 2010 ML-2510 ML-1610D3 ML-2010D3 Dell 1100 Kit comes with 4 Bottles, 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 Product is guaranteed to be same quality print, Bottle size may vary BUT gram load is always the same Great phone support with Laser Tek Services, not usually needed, but if you need it we are there for you Item Weight: 1 pound