Designed with 10 mil naturally bright white base, Epson Proofing Paper White Semimatte is free of optical brighteners & ideally suited for proofing a wide variety of color critical commercial offset printing applications most commonly used in high-end sheet-fed printed products such as brochures, collateral, book covers & posters. Coated with exacting standards, Proofing Paper White Semimatte is specifically optimized for proofing applications using Epson UltraChrome K3 ink & displays outstanding short term stability. Its weight, base tint, & wide color gamut makes this the perfect choice for commercial proofing applications. Sheet / Roll Size: 13 x 19; Paper / Media Thickness (mil): 10 mil; Paper / Media Color(s): White; Color Family: White.