We R Makers Impressed Stamping Dauber Bottle

I really like the concept of this, but there’s really no instructions on it, including how to clean it or what types of products you would put in it. So, I am still a little unclear if this is more for paint or for ink, but it seems very large to put ink in it. I got it anyway because it was a good price, and I needed something to apply ink to my paper edges. I’m not sure if I would use the actual bottle, especially if I plan on changing colors.