The rolls of Cold Press Natural Archival Inkjet Paper from Epson are an acid free, lignin free, and 100% cotton rag media with a natural textured matte finish. This paper has an extremely high color gamut and black density as well as pH buffering for archival-quality prints. Sheet/Roll Size: 24" x 50 ft; Paper/Media Thickness (mil): 19 mil; Paper/Media Color(s): Natural; Color Family: White.