Machine-made of 100% cotton fiber, this 36" x 40' roll of Entrada Rag Natural 290 from Moab offers a natural single-sided matte surface well suited to use with pigment- or dye-based inks. The paper features a basis Weight of 290 gsm along with a thickness of 21.5 mil and water resistance to ensure longevity of your print. The paper also has a measured brightness of 84% and does not use any optical brightening agents and is acid-free to ensure colors remain accurate over time. Additionally, it comes on a 3" core.