I have over a dozen of different types, some not made anymore. The one I reach for the most is Olfa curved handle and Fons and Porter straight one. The F&P has a setting for how many layers of fabric you are cutting. The blade goes out more for six or more layers. I have one that fits on my finger to roll around small acrylic templates. I seldom use that one but it's interesting, don't even know if it's made anymore. I have the discontinued Fiskars ruler with rotary blade attached. It's nice for cutting wide strips. I don't care for the 60mm rotary cutters.