The STAEDTLER® 3001 is a double-ended watercolour brush pen: a flexible brush tip at one end for washes and strokes, a fine tip at the other for detail and outlining. This is the wallet of 18 colours. The ink reactivates with water on most watercolour papers, so a laid-down stroke can be pulled out into a wash rather than staying flat — which is what separates a watercolour brush pen from a coloured marker. Brush tip runs approximately 1.0–6.0 mm, fine tip approximately 0.5–0.8 mm.

• One pen, two tips — a flexible brush tip and a fine tip
• For watercolour effects on most watercolour papers
• Brush tip approximately 1.0–6.0 mm
• Fine tip approximately 0.5–0.8 mm
• Supplied in a wallet