Fiskars 45mm Fashion Loop Handle Rotary Cutter - designed for comfort Designed to fit your hand for comfortable cutting on quilting projects. Our Comfort Loop Rotary Cutter with a 45 mm blade makes cutting a wide variety of quilting materials comfortable and easy. A curved shape with loop handle provides a natural fit for your hand to improve comfort and control, and a versatile design provides excellent blade visibility for right- or left-handed users. It even includes a sliding button that extends the blade during use and retracts it for safe storage. Ideal for cutting multiple layers of fabric, paper, felt and vinyl Rotary blade can be assembled to either side of the rotary cutter, providing optimal blade visibility for both right-and left-handed users High-grade, precision-ground, premium-steel 45 mm rotary blade stays sharper longer than other rotary blades Curved, loop-handle design provides a natural fit for your hand, improves control and lets you keep the cutter in hand while you rearrange materials Sliding button extends blade during use, locks it into position and retracts it for safe storage Lifetime warranty FAQs: How do I replace my rotary blade? Unscrew the metal nut Carefully remove the old blade Insert a new rotary blade Replace metal nut to lock blade into place Safely discard the old blade