The 18mm Stainless Steel Rotary Blade is perfect for quilting, sewing, scrapbooking, and general crafts. Use this small blade for intricate and detailed cutting on small-scale projects with curved pieces and tight corners. The ultra-sharp blade handles the toughest material. For use with 18mm Rotary Cutter (RTY-4) or Rotary Circle Cutter (CMP-3). Contains two blades per pack.