THIS PRODUCT IS EXCLUSIVE TO CASS ART Unison Soft Pastels are handmade amidst the rolling hills of Northumberland. These pastels contain only pure, traditional pigments, which result in intense, vibrant colour. These pastels have an unmistakable, truly soft and smooth consistency. These sets would make a truly special gift for anyone who appreciates the highest quality pastels. With a rich colour harmony across the range, they are available both as single pastels and in a range of sets, with the 8 and 18 Sets exclusive to Cass Art.