Rembrandt soft pastels are made from quality, finely ground pure pigments in an extra-fine Kaolin clay binder. They feature a velvety-smooth softness in every color. Whether you're sketching, experimenting with color or rendering fine artwork, this pastel set invites creativity with an array of highly blendable tones. This set includes Ultramarine Deep (506.2), Ultramarine Deep (506.3), Ultramarine Deep (506.5), Ultramarine Deep (506.7) and Ultramarine Deep (506.9).Details:Deep Blues5 half sticksHighest degree of lightfastnessOptimal color strength with very high pigment concentrationPackaged with molded foam inserts to protect sticks from breakage