The Citadel Shades range has been specifically designed to flow over other paints and settle into the recesses of your miniatures, defining details and enhancing the crevices. When applied, they dry to provide highly effective shading for your models. All Citadel paints are non-toxic, water-based, acrylic, and are designed for use on plastic, metal, and resin Citadel miniatures. Each package contains 18ml of shading paint.