Rotary Essentials Kit. Olfa rotary cutters cut cloth; leather; paper; vinyl; film; wallpaper; photographs and more in straight or curved lines. Each cutter has a blade cover for safety and is designed for right or left handed users. Premium quality blades provide superior sharpness and edge retention. The Olfa self-healing mat is three layers thick for superior durability. This kit contains one 45mm large rotary cutter; one 18mm small rotary cutter; and one 12x18in self-healing rotary mat. Caution: blades are sharp. Handle with care and keep out of reach of children.