The Omnigrid 360 Rotating Cutting Mat makes rotary cutting so easy, even in a small space. Rotate the mat instead of your body, which saves time, reduces fatigue and improves accuracy. Non-slip rotating base that lightly suctions to flat table surface Scalloped edge for easy rotating with fingertips Centering measurements 1/2" overall grid lines for easy alignment 30º,45º and 60º markings for angle cuts