These pastel pencils are ideal for fine and commercial artists. Their intense pigmentation provides excellent performance on thin paper and strong color gradations in application. Light-proof, nontoxic, break-resistant, blendable and partially soluble (contours will remain visible). A fixative is recommended on finished pieces. Details:Incldues assorted colorsAvailable in multiple counts4.4 mm lead diameterLight-proofNontoxicAquarellableBreak-resistant, blendable and partially soluble