45mm Quick Change Rotary Cutter in Aqua has an innovative single click blade change for easily changing your rotary blades. The contoured handle with integrated finger groves, and easy to use blade cover is great for both right and left hand users. There’s no reason to struggle cutting through multiple layers; it’s hard on the material and hard on you. This OLFA rotary cutter is ideal for medium to heavy-duty projects. It can accommodate up to six layers of thin materials.