Unison handmade pastels are created by the labour intensive process of delicately hand rolling, so that the pigment is softly compressed, resulting in fluid colour unlike any other pastel on the market. Created by British artist John Hershey, to his unique formulations using only pure pigments in a cycle of related hues, instead of adding white or black to the colours. The result is intense, vibrant colour application not muddied by the blending of colours. The colours in the vast range are based on traditional pigments such as cadmiums, cobalt's and natural and synthetic earths all mixed to meticulous recipes. Each pastel measure approximately 75x20 mm (3 x 6/8 inches) in diameter however this dimension varies slightly due to the hand-making process. This is the full set of Unison Colour Soft Pastels.WHAT’S IN THE BOX?Red 1-18Red Earth 1-18Brown Earth 1-36Natural Earth 1-18Orange 1-6Yellow 1-18Green 1-36Yellow Green Earth 1-18Blue Green Earth 1-18Blue Green 1-18Ocean Blue 1-12Blue Violet 1-18Grey 1-36Additional 1-54Portrait 1-12Light 1-18Dark 1-24Carbon Black 1-2