A rotary cutter is a tool used primarily in sewing and quilting to cut fabric. It features a circular blade that rotates as it moves across the material, allowing for clean and precise cuts. Rotary cutters are often used with a cutting mat and a ruler to ensure accuracy and safety while cutting multiple layers of fabric. These tools come in various sizes and blade types, making them versatile for different projects. Many crafters prefer rotary cutters over traditional scissors because they can cut through multiple layers at once, saving time and effort. Proper handling and maintenance are essential for safety and longevity.