This Rembrandt 397.9 Permanent Rose pastel is known for possessing unsurpassed glow, purity, and intensity. They are made from the best quality, finely ground pure pigments in an extra-fine Kaolin clay binder. The result is a velvety smooth softness. The rich color is thoroughly blended and uniform, end-to-end. Rembrandt Pastels contain no hard bits or sharp edges. Rembrandt Pastels are hand-checked throughout production to ensure artists the consistency in texture, color, and working qualities that they've come to depend on.