17 mL acrylic paint. Use alone or mix with other acrylic paints to obtain a different colour. Just shake it and use it. The paint is designed to be effective for airbrush and brush and is water-soluble, avoiding strong smells and harmful solvents. It can be easily thinned with AK's specific acrylic thinner or water if necessary. These acrylic paints are manufactured by AK Interactive and are made with a formula that prevents clogging in the airbrush.