Experience colour with Bruynzeel coloured pencils. A strong yet smooth colour core (2.9 mm) is made from high-quality colour pigments so you can achieve smooth colour laydown with good coverage and smooth blending. Produced with care from wood which has been obtained from an environmentally-friendly source. Double glued for extra strength and easy sharpening. This unique collection is developed in co-operation with National Gallery; one of the most visited museums in England.