Royal & Langnickel Wavy Stippler Brush 5 in. Ideal for adding precision graining effects to wood, marble and stone finishes Unique wavy shape for imitating woodgrains such as mahogany, birch, bird's eye maple and walnut burl Use to make your own fun paint effects 100% pure bristle, nickel ferrule 4-inch wide; bristles extend about 1-inch from ferrule