"Crafted from 100% natural Kolinsky red sable, Silver Brush Silver Kolinsky Red Sable Brushes offer incredible quality and performance. Each brush head is hand cupped, shaped, and tied by skilled brush makers in Germany, who then place it in a gold-plated ferrule and secure it to a perfectly balanced wooden handle. The brushes retain their shape and have excellent color-holding capacity for continuous work. Brush sizes - The length and width of a brush of a given shape and size may vary by manufacturer as brush sizes are not standardized. Since fine art brushes are handmade, expect some variation even among brushes from within a single brush line." -Blick

This brush is made with natural hairs or fibers.

Natural