A rotary cutter is a handheld cutting tool with a circular blade that rotates as it moves, designed for precise and efficient cutting of fabrics, paper, leather, and other materials. It is commonly used in quilting, sewing, and crafting projects. The blade is typically made of sharp stainless steel and is available in various sizes, with larger blades suitable for cutting multiple fabric layers and smaller ones ideal for intricate cuts. Rotary cutters often feature an ergonomic handle, a safety guard or retractable blade for protection, and compatibility with cutting mats to prevent surface damage and ensure clean cuts.