Convenient size for home, travel or taking to classes. Self healing cutting mat side is marked in imperial measurements with 30, 45 and 60 degree angles. Ironing Board side is ideal for pressing, sewing, quilting and crafting projects. Mat: 12″ x 17 1/2″ (31 x 45 cm). Grid: 11″ x 17″ (28 x 43 cm)