Circular rotary replacement blade for Olfa's 28mm rotary cutters. Used for quilting, sewing and general crafts. This blade is made of high quality tungsten carbide tool steel for for unparalleled sharpness and superior edge retention. Ideal for small-scale projects, cutting along curves and tight corners. For Original 28mm Rotary Cutter (RTY-1/G) and Deluxe 28mm Rotary Cutter (RTY-1/DX).