100% Rubber Each vintage souvenir state magnet is molded in durable .100"-thick flexible rubber Set includes 51 Classic Magnets (all 50 states plus Washington, D.C.) - You save approximately $100 by purchasing the magnet set! Made in the U.S.A. by Ideaman, Inc., the manufacturers of the Original Classic souvenir magnets! Each flexible rubber magnet measures 2.5 square inches (roughly 1.5" x 2.25" - varies by shape) Perfect set for the Souvenir Magnet Collector! Collector's magnet board available (sold separately)