This Aquarelle Watercolor Brush from Caran d'Ache is equipped with a fine 9mm fibre tip. Practical and easy to use, the 20ml reservoir is easy to fill and clean using its pump system. The synthetic tip can be cleaned with water. The large push button allows for precise control by the artist. Ideal for use with all kinds of watercolor products. This is a great tool for traveling or sketching outdoors.