 Well, this is, you know, you have the four colors and you go buy the big things and fill them up and they last forever, supposedly. So, okay. I usually just use the black. I don't use the color stuff ever. Mostly all black. So why I got this one, I don't know. But anyway, I filled the black all up just fine. But the colors were starting to get down maybe like two-thirds of the way down.