Stonehenge Aqua Black watercolor paper performs to the most critical demands expected by artists. Ideal for use with metallic and pearlescent watercolor paints, pencils, pens, markers and inks. This paper dries flat and colors dry bright. Featuring 100% cotton fiber, it has a neutral pH, is acid- and lignin-free. It delivers great results whether working wet, wet on dry, blending, lifting or masking out.