The final product is resistant to water thanks to the oily treatment. This gives our coloured pencils, along with the addition of binders and other additives, an unsurpassable ability to make a unique stroke on paper or another medium. The pencils contain a set of unique components which ensure a convenient, full colour stroke without the necessity of high pressure. This handy feature is enhanced by the preparation of pastels in special oils. Thanks to the diameter of the lead, 3.8 mm, Polycolor coloured pencils provide excellent artistic value to any user. Noble wood, from which the pencils are made, allows easy sharpening. None of the components used during production contain toxic or otherwise harmful substances and the final product is therefore suitable for all age categories. Comes in a sets of 12, 24, 36 and 48. Pencils are enclosed in a tin case that keeps everything organized and protected.