This compact, bullet-shaped detail brush is perfect for applying concealer to clean up stray powders, make your eyeliner a crisp line, or define your lip shape. The Pro Oval can be used with powders, creams, or liquids. Synthetic fibers make it incredibly durable. Indefinite lifespan with proper care. Pro Tip: This is the perfect brush to clean up eye liner or lip shape, this will give more definition.