Simple to use: just cut, rotate mat, and cut again!
The OLFA RM-12S 12" Rotating Cutting Mat is unlike any mat you've used. It comes in two parts that fit together and provide a smooth rotation. When you've finished one cut, you can simply rotate the mat instead of moving everything else. Use with your favorite OLFA Rotary cutter and blades.
The OLFA rotating mat has a non-slip, stationary bottom layer with an interlocking top cutting mat that rotates smoothly 360 degrees. It's perfect for cutting squares, triangles, diamonds, circles or any shape that requires turning.