Projet Museum Smooth 100% Cotton Rag, Archival Fine Art, Wilhelm Institute Certified, Inkjet Paper, - 265gsm, 16 mil, 17x22", 25 Sheets 100% Cotton Rag Smooth Surface (Matte) - No Optical Brighteners Wilhelm Institute Certified Archival - Acid and Lignin Free - Buffered for enhanced stability Wide Color Gamut - Highest D-Max for Deep Rich Blacks Museum Quality Rating - Perfect for Fine Art, Photographic Prints, Reproduction Prints and any output demanding maximum performance. Dye and Pigment compatible (Matte Black Ink preferred)