The revolutionary Rotating Self-Healing Rotary Mat makes quick work of your entire quilt cutting with one easy movement. Simply cut, rotate, and cut again for quick, effortless results. Great for cutting squares, triangles, diamonds, circles and any shape which would ordinarily require you to turn your project or body around. Easily make 30?, 45?, 60? and 90? cuts. The Rotating Mat's smooth rotation action simplifies your piecework when making multiple cuts, saving time and effort for you. Especially designed for use with OLFA rotary cutters. Rotary mats protect your work area and greatly extend the life of your rotary blades.