A convenient foundation for any presentation. Create self-standing displays for school projects or business presentations with Tri-Fold Display Boards. These sturdy foam boards help you add a professional touch to your work. Each board folds for easy storage and features a smooth white surface that’s perfect for markers, paints and adhesives. CFC-Free Polystyrene. Art Board Type: Tack Display Board; Material(s): CFC-Free Polystyrene Core; Color(s): Black Surface/Black Core; Board Size (W x H): 24" x 36".