OLFA Rotating Square Cutting Mat 12inPopular 12in x 12in green exclusive rotating self healing professional quality rotary mat rotates 360 smoothly, eliminating the need to move your body or your project around. It's simple to use, just cut, rotate mat, and cut again! Non slip back for stable and safe cutting and light weight to take along to class. Easily make 30, 45, 60 and 90 cuts.