24 ColourBlend pencils. Each pencil is fully loaded with premium grade wax-based pigment, for a rich, velvety colour laydown with unrivalled blendability. Featuring a thick 4mm core made from lightfast artist's quality pigment, ColourBlend pencils give you professional yet affordable performance. Their colours are wax-based and will blend and layer wonderfully, with huge variations in tone and intensity for shading. You'll be amazed what you can do with them!