Gypsy Quilter Wool Pressing Mat 13-1/2in x 13-1/2in x 1/2in Thick Press any pieced or embroidered block with ease. The density of the ½"-thick 100% felted wool absorbs seams and stitches, pressing both sides at once. The wool stops fabrics from shifting, preventing distortion. From the Gypsy Quilter™. 13-1/2" x 13-1/2".