Wallis sanded pastel paper is water and solvent resistant, making it the perfect choice for working with pastels and mixed media. Available in Antique White or Belgium Mist Grey, each sheet is made with aluminum oxide grit, providing one of the hardest and most re-workable surfaces available on the market. Professional sheets are neutral pH and feature a 236 g weight card stock. Museum sheets are acid-free, buffered, and feature 100% cotton 300 g card stock. Rolls are 10 yards long x 46" wide. Pads are perfect for Plein Air techniques, and have 8 sheets ready for field use. All 18x24"and 24x36"sheets require a Minimum Purchase of at least 10 Sheets.