Winsor & Newton Professional Watercolour Synthetic sable brush - Size - Medium; Handle - Short; Shape - Quill; Hair - Synthetic Sable. Made from 100% synthetic fibres which performs at a professional level; specialist blend of hair delivers uncompromising quality and performance, with excellent colour carrying capacity. Unique sculpted handle with a matt finish provides the ultimate comfort and control while painting. Ideal for Watercolour, Gouache, and Ink. Quill - A synthetic squirrel brush, the quill shape is conical with a thick belly. The quill shape provides excellent colour carrying capacity and controlled washes; Made in France.