Samsung ML 2010 High Yield Toner Refill Kit 4 Pack, also for ML-2510 Dell 1100 Printers & ML-1610D3 ML-2010D3 Kit includes: 4 bottles of toner, funnel cap, gloves, seal, and ILLUSTRATED instructions. Premium quality, high yield toner Product is guaranteed to print at the same quality as a brand new toner cartridge and yield the same amount of pages Instructions are very easy to follow but we offer phone support to aid in the refilling process if needed