Sennelier 36 Assorted Oil Pastel Wooden Box Set. Sennelier Oil Pastels began to be developed in 1949 by Sennelier for Pablo Picasso who was looking for an oil pastel that had intense colour and could be applied to a wide variety of surfaces. The resulting Pastel has intensity and vibrancy of colour, is 100% lightfast and, due to the combination of non-aggresive oils and waxes, can be used on almost any surface, including paper, without cracking or effecting the substrate.This Box Set presents 36 colours in the standard size stick snugly nestled into a foam lining within a beautiful Wooden Box. Colours may vary according to availability but the image provided shows a typical selection. Please visit our shop for more Art&Craft items.