Richesons Unison Premium Pastel Surface- 140lb Pastel PaperThis pastel paper has an exquisite toothy finish. Pastels can be applied with ease as the surface grabs and holds the pigment layer after layer. Richeson offers this pastel surface on three different substrates- 140lb paper hardboard and Gator foam. This is the paper substrate; the sanded primer is screen printed onto 140lb acid free paper. The paper is sold in packs of ten sheets only.