Circular rotary replacement blade for the 60mm rotary cutters used for quilting" sewing" and general crafts. Cuts up to 6 layers of fabric. This blade is made of high quality tungsten steel for unparalleled sharpness and superior edge retention. For Original 60mm Rotary Cutter" Deluxe 60mm Rotary Cutter and Quick-Change 60mm Rotary Cutter. 5 blades per pack.