• Brand = Staedtler
• Model Number = 3001 TB36 ST
• Colour = Multicolour
• Material = Plastic
• Point Type = Fine
• Manufacturer = Staedtler
• Country of Origin = India
• Both side watercolour brush marker pens flexible like a brush, a pen or watercolours
• Line width brush tip approx. 1.0 mm to 6.0 mm and fine tip approx. 0.5 mm to 0.8 mm
• Can be Used as both a Pen and a Brush
• Creates watercolour effects only on a watercolour paper

If you don't have water available or just don't want to use it, you can still paint with your watercolor brush pens.

Water is optional but it allows you to achieve even lighter gradients and create beautiful watercolor effects.

On the other hand, you can't use watercolor paint without water.