Duncan Discovery Paint Brush - BR576 3/4 Inch Premium Glaze Duncans Discovery brush line is versatile with a wide range of brush tips. Brushes can be used with underglazes and glazes. Duncan Discovery Brushes are identified by their waterproof clear acrylic handles with teal markings and handle tip. Great for beginning hobbyist. Excellent for beginners and students based on durability. Made in China.