Core'dinations Core Basics black cardstock is perfect for crafting invitations, greeting cards, picture mats, paper punches, and more. Each package includes both smooth and canvas textured paper in a convenient 6 x 6 inch size. This 80lb. solid-dyed black core paper is acid-free, lignin-free, and archival quality. Pack contains 20 textured papers and 20 smooth finish papers. 40 sheets per package.