Create a watercolor masterpiece with the Aquash Water Brush Fill barrel with water and blend powdered pigment, watercolor crayons and pencils, pastels and more. Ideal to use with Sign Pen Brush products Control the water flow with just a squeeze of the barrel. The durable, nylon tip will give a sensitive response for delicate lines or pools of water Easy to clean and dishwasher friendly Four assorted brush sizes: Small, Medium, Large and Flat