Everything Yoga 45mm Rotary Yoga Mat Cutter The 45mm Rotary Yoga Mat Cutter can easily cut and size your yoga mats, and is perfect when purchasing a yoga mat roll. With a sharp, large round blade, you can quickly cut your mats to any size. The cutter is so easy to use that you can cut straight lines effortlessly. Featuring a blade safety cover and a handle specially designed to reduce hand fatigue, this rotary mat cutter has a rolling razor blade that is designed to accommodate both right-handed and left-handed users.