These Winsor & Newton Cotman Watercolour Series 333 Rigger Brushes are made from fine synthetic fibres, perfect for all your watercolouring needs. These brushes are constructed using several different fibre thicknesses. The denser strands provide sturdiness and the finer strands hold the colour. This blend delivers the perfect mix of strength and smooth paint application. Handles are produced to ensure maximum security, while ferrules are clog and corrosion resistant and easy to clean. The Winsor and Newton Cotman Water Colour Rigger Brush Series 333 has an extra fine point for painting lines, long scroll work and detail.