Rotary Cutters

Rotary wheel cutters are a popular alternative to scissors. They're a particular favorite of quilters and crafters, offering quick, accurate cutting for straight edges and multiple layers, as well as curves.
 

Choosing a Blade Size
In general, the larger the rotary blade the easier it is to slice through fabric. Smaller blades are a good choice for cutting around curves, but cutters with larger blades will be the ones you reach for most often.