Kozo (mulberry) is a traditional fiber used to make washi that produce exceptionally strong archival papers. ‘Kozo Thin White’ is recommended for photos, giclee prints, museum quality reproductions, fine art, scrolls etc…It is great for backlit, wrapping and other applications where you need a very strong / semi-transparent paper - Not recommended for images with high ink-density as thin papers may buckle slightly. (Optical Brightness Level = 77)