6 Inch Multi-Purpose Exterior House Painting and Faux Painting Block Brush by The Woolie Designed for use with water-based or oil-based paints and stains. High quality for a very low price. Washable and Reusable. Highest quality to ensure your painting project success! Makes painting easy. Use for interior or exterior walls, floors and ceilings This brush WILL save your time and energy on your next paint project.