Review on E-Z Ink (TM) Compatible Toner Cartridge Replacement for Samsung 105L MLT-D105L – Compatible with SCX-4623F, SCX-4623FW, ML-2525, ML-2525W, ML-2545, SCX-4623, ML-2540, SCX-4600, SF-650 – Black, 2 Pack by Andrew Schreider

I have a Samsung ML2525 Laser and these cartridges fit perfectly and the print quality is very good. It's good that there are 2 cartridges in the box, so when the time comes when it runs out, I'll just put the 2nd one in. I've used another brand before and while they were good too, they were a bit pricey.