PENTEL-Arts Aquash Water Brush. This empty water brush is great for solid colours or powdered pigments. Use this brush with watercolour crayons; markers and pencils to spread and smooth colors. Featuring a durable nylon brush that will hold its point use after use. You can create everything from a broad strokes to a fine line. The barrel is soft and easy to hold and use as well as the barrel design preventing the brush from rolling away. The controllable water out-put allows you take total control of your work. This package contains one water brush.