Magic Pressing Mat By Pam Damour 12? x 18" The mat is made of all natural fibers in the USA and creates a perfect pressing surface for your embroideries, quilt blocks, garments and more! use with or without steam for a professional result. Because of its dense natural fiber construction, it holds the heat and is like pressing your projects on both sides at the same time. Place it near your sewing machine to save trips to the ironing board.