Art Spectrum Colourfix Original Pastel Pads are screen printed with Colourfix lightfast primers, giving them a toothy, medium texture that requires no fixatives between layers of pastel, charcoal, and chalk. Made of 50% cotton rag, the hot pressed, acid-free paper is both water- and solvent-resistant, making it suitable for pastels, oils, acrylics, oil pastels, inks, gouache, watercolors, and dry media. - Art Spectrum Colourfix Pastel Pad - Pkg of 20 Sheets, Rainbow, A3as Colourfix Pastel Pads, RAINBOW 20SHTS - Includes one each of White, Clear, Sand, Rich Beige, Australian Grey, Soft Umber, Raw Sienna, Terracotta, Burnt Umber, Rose Grey, Burgundy, Aubergine, Deep Ultra, Storm Blue, Blue Haze, Fresh Grey, Leaf Green Dark, Olive Green, Elephant, and Deep Black.