Art Alternatives Super Value Black Canvas Panel packs are the ideal painting surface for artists that use lighter paint applications, artists looking to practise techniques, for creating large quantities of work, for classroom projects or artwork on the go. Unbleached 90ml cotton is primed with acid-free acrylic titanium black gesso, for a finished weight of 240mls. Wrapped around an acid-free recycled paper board core. Suitable for all acrylic paints, oil paints, and other wet or dry media. Panels measure 20cm x 25cm and come in a pack of 6.