Winsor & Newton Series 666 Size 19mm One Stroke Cotman Brush. Ideal for edges & shapes or applying washes. This flat wash brush possesses great spring and color-carrying capacity. Made from fine synthetic fibres, perfect for all your watercolouring needs. Constructed using several different fibre thicknesses- with denser strands providing sturdiness and the finer strands holding 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. Ideal for students and professionals alike, these brushes will be a great addition to your artist's tool kit.