This Arches watercolor block features a new square format. Arches 140 lb. Cold Press Watercolor paper blocks are made with superior quality,  mold-made paper from the Arjomari Mills of France. Made from 100% rag, these 140 lb. blocks provide portability that is ideal for field work and travel. The 140 pound block contains twenty 7.9"X7.9" sheets per block.