210 gsm or 100 lb paper Sold in packs of 20 sheets 12' x 16.5" Used for Block print, print press and drawing and painting Tub sized (surface sized) with gelatin Artist Paper made from 100% long fibered cotton rag, resulting in exceptional strength and durability. They are tub sized (surface sized) with Gelatine. For watercolor and all painting and drawing media(not oil), print press, block print, invitations etc. Acid free. This is a handmade item and is not eligible for return or refund.