100% cotton hot press paper with a coating on both sides for extra versatility. Features an ultra smooth finish on two sides that is optimized for Epson Photographic Dye, Epson UltraChrome & Archival Inks. Acid-, lignin-, & chlorine-free, it is also pH buffered with calcium carbonate for a true archival sheet. Engineered to give you the highest resolution & color saturation possible. Sheet / Roll Size: 36" x 131.7 ft; Paper / Media Thickness (mil): 5 mil; Paper / Media Color(s): White; Color Family: White.