With a ultra-white and extra smooth gloss surface, Photo HighGloss Premium RC Paper from Canson Infinity delivers exceptionally sharp and bright imagery with a wide color gamut and deep blacks. Available here as a 25-pack of 8.5 x 11" sheets, the 315 gsm paper uses a 100% alpha cellulose base with a polyethylene resin coating and multiple microporous color receiving layers. It also has a thickness of 11 mil and a rated whiteness of 135.55% thanks to the moderate use of OBA content. For longevity it is acid free and internally buffered while it is also instant drying and highly water resistant for easy handling.