These rolls of Epson Hot Press Bright Archival Inkjet Paper are an acid free, lignin free, 100% cotton rag media with a smooth matte finish and a 96% ISO brightness rating. The traditional made mould paper features an extremely high color gamut as well as high black density. This paper is designed to deliver the best quality when used with Epson ink. Sheet/Roll Size: 24" x 50 ft; Paper/Media Thickness (mil): 16 mil; Paper/Media Color(s): Bright White; Color Family: White.