Conte Crayon PERSIAN VIOLET (055) (WNCC055) Conte crayons, with their square cross-sections offer rich, vivid colours which mix together nicely, and produce a range of effects which can be consistently produced. These crayons are very soft to use and are manufactured using natural pigments (iron oxides, carbon black, titanium dioxide), clay (kaolin) and a binder (cellulose ether).They are then baked after being extruded and dried. The degree of baking varies the grade (hardness: H/softness: B) of the black and white crayons. Their rich opacity makes them ideal for work on darker papers and their quality ensures the longevity of drawings. Conte crayons are waxier and much firmer than soft pastels, so they produce little dust and are easy to control. Each crayon measures 6x6x63mm. FREE shipping on orders over $175, and large shipping refunds on multiple purchases. Just email us with your order number and we will see what we can do. We aim to ship every order received before 02:00 NZT on the same day and most orders will be with you inside of 12 days, although some may take up to 15 working days. Free Shipping only on orders of 4kg or less.