This cigarette smoking anatomical chart Accurate: Painstakingly researched and executed by today's top medical illustrators. Attractive: Up-to-date, with a fresh, consistent style and contemporary look. Durable: Full-coverage 1.5 mil lamination with sealed edges • virtually impervious to moisture • metal eyelets for hanging. Practical: Convenient chart format • Diagram measures 22x28 inches (56x 71cm) write on/wipe-off using dry-erase markers (not included).