Proper cutting requires a self-healing cutting mat. This set is perfect for designers, scrapbookers, calligraphers or anyone who needs a surface for cutting with a blade. Protect your work surface from sharp blades, writing instruments and other art and craft tools. Cut paper, film, textiles and more on this self-healing mat. The cutting mat's resilient surface heals so completely that cutting leaves no visible trace. The mats non-slip, non-glare surface is printed with a 1'' grid with 1/8'' marks for precise alignment along with lines for cutting the perfect 90, 60, 45, or 30 degrees angle. The mat won't break down with repeated use and actually prolongs the life of the knife blade. You can even use both sides. Size 12'' x 12''