The Caran d’Ache Watercolour Paint Brush #4 (Series 803, Ref. 115.107) is a premium wash brush trusted by professional artists and ideal for anyone learning serious watercolour technique. Made with extra-fine Kazan squirrel hair mounted in a traditional quill setting, this brush is prized for its exceptional water retention, soft flexibility, and a beautifully fine point—perfect for fluid washes as well as controlled detail.

One of the standout qualities of squirrel hair is how it holds a generous amount of water and pigment, allowing you to paint longer strokes and smooth gradients without constantly returning to the palette. When dipped in water, the hairs naturally draw together to form a sharp, responsive tip, making this brush equally suited to small areas, fine edges, and delicate passages—as well as broader wash work.

Finished with a short, rough wooden handle and clear coating for comfortable control, the Series 803 Size 4 is a versatile studio essential for watercolour painting, wash drawing, and expressive ink-and-wash effects.

Key features

• Series 803 wash brush – Size 4

• Extra-fine Kazan squirrel hair for superior water and pigment retention

• Quill-mounted construction for a rich, full belly and refined point

• Soft, flexible feel for smooth washes and sensitive mark-making

• Brush size: Diameter 11 mm x Length 34 mm

• Short wooden handle with clear coating for control and comfort

• Supplied individually wrapped

Safety: Warning — not suitable for children under 3 years old.
Product reference: 115.107