A rotary cutter is a cutting tool commonly used in sewing and quilting. It features a circular blade that rotates as it cuts through fabric, allowing for smooth and precise lines. This tool is especially useful for cutting multiple layers of fabric at once, making it a favorite among crafters and professionals alike. To use a rotary cutter safely, it is typically paired with a cutting mat to protect surfaces and prolong the blade's sharpness. The cutter is often used alongside a ruler to ensure straight cuts, making it an essential tool for anyone working with fabric.