SANFORD-PrismaColor Colorless Blender. Use a colorless blender to achieve color transitioning with ease, softening of edges, saturation of color, and color layering. This package contains two colorless blenders. Conforms to ASTM D4236.
The blender blends and softens hard edges in colored pencil artwork. It consists of a clear, clean formula that allows for heavy layering while colors below remain bright.