"For watercolor, acrylic, and other media: Synthetic brown nylon bristles; Long and short varnished birchwood handles; Crimped aluminum ferrules. Whatever your style, skill level, or choice of media, there's a Blick Essentials Brown Nylon Value Brush Set that's right for the task. Available in a variety of shapes, sizes, and combinations, these paintbrush sets are great for all types of artists — students, beginners, and the price-conscious professional. They offer good quality at a reasonable price.. Flat Brushes, Brown Nylon, Set of 12 - Includes Flats in Sizes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, and 12. Use them for making bold strokes, filling in large spaces, and making fine lines, straight edges, and stripes." -Blick

This brush is a student brand.

Synthetic