Albrecht Dürer artists' watercolour pencils top 100 colours available under separate listing. These pencils provide artists with great versatility of expression when drawing shading and painting in watercolours. High-quality materials combined with over 250 years of experience have resulted in watercolour pencils that produce unsurpassed watercolour effects and vibrancy. The coloured surface can be transformed with only a few fine or broad brush strokes to reveal the full and unique power of the colours. Depending on the paper being used the pigments can be completely dissolved and will then behave in the same way as classic watercolour paints. The paint becomes permanent when dry (does not require fixing) enabling other layers of colour to be superimposed without causing it to dissolve again. Being part of the WWF Global Forest & Trade Network 95% of all wood used by the Faber-Castell Group is certified in line with the stringent requirements of the FSC. All Faber-Castell products have been certified non-toxic by a board-certified toxicologist and are safe to work with when used as intended.