The Sassy 45mm Rotary Cutter is a high-quality tool at an unbelievable price. The 45mm blade is extremely sharp and is great for cutting straight lines, backwards, and also curves. Best of all it can cut through multiple layers of fabric for quilt strips and shapes. Comfortably cut fabric for hours with precision as well as accuracy. Users can assemble the rotary blade to either side of the rotary cutter. This provides optimal blade visibility for both right- and left-handed users.