Compatible with all pigment and dye-based inks, the Hahnemühle Photo Rag® Brt Wht 310 gsm 11 x 17-inch 25-Sheet Pack is the ideal choice for guaranteeing archival standards. Each paper has a moderate OBA content, a pH-value of 8.2, an opacity of 99%, a thickness of 0.5 mm, and a whiteness rating of 99.5%. The pages are also acid-free, calcium carbonate-buffered, and water-resistant. You can use these pages for not just photo and fine art reproduction, but also for presentation and exhibition prints, limited-edition prints, greeting cards, and albums.