Inkpress Media Rag Cool Tone 200 Paper (4 x 6", 50 Sheets)This 50 sheet pack of 4 x 6" Rag Cool Tone 200 Paper from Inkpress Media features archival grade paper that is made of 100% cotton rag with a cool bright white coating. It is also acid and lignin free and has a heavy basis weight of 200 gsm along with a thickness of 15 mil. This paper is double sided and features a brightness of 95%. Additionally, the archival paper is light and water resistant for lengthening the lifetime of your prints.