This studio series paper palette pad from Peter Pauper Press is made for mixing paint on like a wooden or plastic palette. Pages are made of smooth water-resistant paper, ideal for mixing watercolor pigments, gouache, acrylic, & oil paints. When you're done with your mixing, simply tear off the top sheet & throw it away, leaving a nice clean pad for mixing next time! Palette surface measures 9in x 12in & includes 40 sheets.