Five A4 sheets of Fair Trade Khadi paper made in Karnataka, South India from 100% cotton rag that comes from T-shirt factory off-cuts. Genuine rag papers are rare and it is the fibre length of this raw material that gives Khadi rag papers their exceptional strength and durability. The paper pulp is mixed with a neutral pH size so they are genuinely acid free. Handmade papers are made sheet by sheet, not in a continuous roll. After drying, sheets are tub sized (surface sized) with gelatine which produces a hard, water resistant surface. This is the traditional way of sizing paper for watercolour, allowing watercolour to be worked over the surface without penetrating the paper. The papers can be used with all painting and drawing media. For painting in oils they should be primed with gesso or acrylic primer.