Product Description Designed for airbrushing, pen and ink, refillable markers, pouring, glazing and painting, GOLDEN High Flow Acrylics are high-intensity, flowing colors made with opaque and transparent pigments. They are formulated virtually clog-free utilizing 100% acrylic polymer emulsion and lightfast pigments (excluding Fluorescents). -49 high-intensity, fluid colors including iridescents and fluorescents. -Opaque and transparent. -Add to refillable markers, ruling pens or technical pens. -Great for illustration and fine detail. -Flows effortlessly from a brush. -Great for staining and color washing. -Pour right from the cylinder!