Rembrandt Pastels are made from the best quality, pure pigments finely ground in an extra-fine Kaolin clay binder. They have a velvety smooth softness and are thoroughly blended and uniform, without hard bits or sharp edges that could cause shiny spots or scratches during application. These sets feature color collections in cardboard boxes with molded foam inserts to protect pastel sticks. Sets available in either full or half-stick styles. The landscape sets include more blues and greens. The portrait sets include more earth and flesh tones.WARNING: These products contain a chemical known in the State of California to cause cancer.