Grumbacher Gainsborough Round Oil and Acrylic Brush, Hog Bristle, Size 1 (1271R.1) Strong, durable brush easily manipulates heavy paint; unique taper causes the bristles to interlock, which maintains its original shape and helps control the placement of color Designed for creating very controlled brush strokes and details Brush has a round ferrule and the tip is round and slightly pointed Made from Chungking hogs hair - best choice for oil and acrylic paint due to the flags that hold color Professional-grade brush