Baohong 100% Cotton Watercolor Paper Roll 21.26-inch x 10-Meter 140 lb / 300 gsm Acid-Free Wet Dry Mixed Media Artists StudentsBaohong 100% Cotton Watercolor Paper Roll 21. 26 inch x 10 Meter 140 lb 300 gsm Acid Free Wet Dry Mixed Media Artists Students About this item 21. 26x10 Meter Professional Heavyweight Watercolor Roll. Acadamy quality watercolor paper that are ideal for watercolor and mixed media techniques. Watercolor pads have thick, heavyweight, 140 lb, 300 gsm, cold pressed textured surface natural white paper sheets. The cold press slightly textured surface makes