Duncan Signature Paint Brush - SB803 No.4 Liner Duncans Signature brush line is for the seasoned ceramist due to there premium quality. Handmade with 100% pure red sable or badger hair by master craftsmen. The natural hairs have better color holding and application performance compared to synthetic bristle brushes. If properly cared for, Signature brushes will supply outstanding performance for many projects over the years. Duncan Signature Brushes can be identified by their waterproof clear acrylic handles with gold markings and handle tip. Signature Brushes long fine hairs make for a sharp tip that is naturally resilient and crisp. Made in China.