A water mixable artist oil. I went acrylic all the way. Bet I have $500 to $600. invested in these paints. Formulated with a modified oil binder, Cobra thins easily in a 1:1 ratio with water or medium and can be used with traditional oils at a 4:1 Cobra ratio. Most colors are ground in pure linseed oil; select whites and metallics use non-yellowing safflower oil. https://www.dickblick.com/products/royal-talens-cobra-water-mixable-oil-colors/