Staedtler(R) Cutting Mat, Clear Cutting Mat Dimensions: 12 in. x 18 in (30 cm x 46 cm) Provides an excellent cutting surface for light tables/boxes or tabletops. Self-healing surface allows yout to cut over and over without leaving a permanent mark. Double-sided, non-slip and non-reflective work surface for cutting and writing 1/8 in (3 mm) thick, latex free.