The overall size of the wool prssing mat is18" x 24"; while the cutout mat measuring 13½" x 13½". The mat is 1/2" thick and made with 90% wool, 10% polyester fiber. You get two mats for the price of one.Conveniently portable; take the cutout mat with you to your next sewing retreat. Pin directly to both mats. Perfect to use next to your sewing machine. Made in the U.S.