Toner Tap&reg; Compatible for Samsung&reg; CLT-K504S Black Toner, For Use In Samsung CLP-415NW, CLX-4195FW, Samsung Xpress C1810W, C1860FW, 2,500 Page Yield Compatible wtih Samsung CLP-415NW, CLX-4195FW, Samsung Xpress C1810W, C1860FW Printers Replace Samsung CLT-k504S black toner cartridge 100% Brand new and IP Protected components and parts Estimated Toner Yield 2,500 pgs measured up to and above OEM standards All our toner goes through TT Quality Control system and is 100% guaranteed against defect or your money back!!