ARCHES Watercolor Block - Hot Pressed 140 lb 9" X 12" (20 Sheets) Arches Paper from $43.23 $66.50 Qty. Add to Cart SKU: A1795072 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Contains 20 sheets of 140 lb. (300 gsm) Hot Presses Watercolor Paper. Tweet