Caligo Safe Wash Relief Inks are oil-based printing inks that are easy to clean up with soap and water. Made from polymerized vegetable oil and artist-quality pigments, they produce a unique product that is suitable for all types of block printing. - Cranfield Caligo Safe Wash Relief Ink - Raw Umber (Hue), 75 mlCaligo Safe Wash Relief Ink, RAW UMBER 75ML -