Winsor & Newton Series 7 Kolinsky Sable Brushes are a round bellied brush with a fine pointed tip, making them perfect for both washes of colour and fine detail work. These brushes were designed in 1866 by order of Queen Victoria to produce the world€ s finest watercolour brush. Winsor & Newton Series 7 Kolinsky Sable brushes are ideal for use with watercolour paint, but are also suitable for use with thinned gouache and other water-based paints. Winsor & Newton Series 7 brushes are made from the finest quality Kolinsky sable hair, secured in a black polished handle by a seamless, rust-proof ferrule. The brush point stays pointed during use with the excellent spring for control, proving the high quality of the brush design. The rounded belly of the brush head allows more paint carrying capacity and creates a consistent and even flow of colour from the pointed tip. Cleaning: Wipe clean with a lint free cloth and rinse under running water. Using mild soap and cool water, swirl the soapy brush in the palm of your hand and rinse. Repeat until water runs clear. Squeeze or shake off excess water, then gently reshape the bristles and leave to dry.