• Nylon brush tip pen filled with water-based (dye) ink
• 18 vibrant colours to choose from with replaceable cartridges (Pentel FR Refill)
• Excellent for wet-on-wet techniques to create beautiful, vivid, translucent, watercolour effects
• Valve-activated for smooth flow, without leaking
• Synthetic fibre tip retains its shape and is a convenient, portable alternative to traditional brushes
