This archival paper is mold-made with 100% cotton fibers, has a natural white luster and stands the test of time. A process exclusive to Arches, gelatin sizing to the core gives each sheet on this watercolor journal astounding absorbency, as the pH-neutral, gelatin-sized internal and external fibers hold pigment in place without over-saturation. Easily correct liquid media mistakes repeatedly and with minimal warping to the textured paper. Arches can be used as more than just watercolor paper; this exquisite, thick cotton paper functions well with all wet techniques as the cotton fibers adapt to whatever medium you use to craft your work. Arches cold press watercolor paper contains no optical brightening agents. This package contains a 14x20 inch Cold Pressed Watercolor Block. 140lb, 20 Sheets. Imported.