This is the fabulous fine point liner from Royal and Lannicle. It's a great brush for doing long continuous lines because it holds so much color. When the brush is new, you want to first remove the plastic cap. Give it a gentle twist and throw that cap away. Don't try to save it and put it back on because you can get hair caught in there causing damage. The brush comes with a setting and it needs to be washed out. Just dip it into water, work it in the palm of your hand to break up that setting and loosen it up. Give the brush a rinse and then you're ready to work with it. You'll notice the long skinny tail that's on here. This is how you get such nice fine lines. This thicker area up here is a reservoir that's going to hold a lot of color in the belly of the brush. I'm thinning the color with a little bit of water. If you start painting and the brush skips across the top of the surface and doesn't give you a nice smooth line, it usually means that the color is too thick and just needs to be thinned a little bit. Practice first doing straight lines. Try to keep the brush straight up and down. Practice doing wavy lines. Then practice doing lines that have curly cues and swirls. As you go with this brush, you'll discover rather quickly how you can do very long continuous lines without reloading the brush. Most detail brushes at this point would need to be reloaded. And that's what makes the fabulous fine point liner such a great brush.