Cezanne Watercolor Paper Blocks by Hahnemuhle - Hahnemuhle Paper is made in Germany. This company is well known in the United States for their fine drawing and pastel papers. They also make watercolor paper that is professional grade, beautiful paper. The Cezanne Watercolor Paper block is made with 100% cotton rag, acid free, 140lb paper. Unlike most watercolor paper blocks, the Cezanne blocks are glued on all four sides and sealed with very fine cotton gauze. This gauze seal on the edges makes the block more resistant to warping as you work. Sheets must be carefully removed from the block using a blade. The paper itself is natural white in color.