Fluid 100 Watercolor Paper is gelatin-sized, 100% cotton archival quality paper. Crafted in small batches, Fluid watercolor papers are ideal for use with both wet and dry techniques. The gelatin-sized surface of this hot-press Fluid watercolor paper produces vivid colors and has a delightfully subtle, pleasing texture. Fluid Easy-blocks offer ultimate convenience for watercolorists. Easy-blocks are glued on two edges so that each paper remains flat and steady while painting, but can be removed quickly and easily with a knife or letter opener when finished.