Spectrum NoirSpectrum NoirColorBlend Pencils: Primaries. These blending pencils are perfect for any artist! Use alone or with markers and mixed media, their highly pigmented, velvety texture provides superior blending with outstanding tonal range. Perfect for all kinds of art, illustration, sketching and design. This package contains twentyfour blending pencils in assorted colors within one 1/2x91/4x73/4 inch tin case. Conforms to ASTM D 4236. Imported.