Hog Bristle Fan Brushes are some of the most Versatile. Adding Great Depth and Texture to paintings. They work very well with both Oils and Acrylics. Affordable and Easy to clean. Hog Bristles will soften with water. I like to "rough" mine up so that bristles splay out... great for creating Trees, grasses, and so much more! MY FAVORITE BRUSHES!