Special rotary blades cut freestyle. Perfect for cutting fabric, film, leather, thin rubber sheet without twisting the material. These carbon tool steel rolling blades have chromium and tungsten added for extra wear-resistance and produced through multiple stages of precise process to obtain the ultimate sharpness and optimum edge-retention. Two blades per pack. Made in Japan.Rotary blades for rotary cutter (RO-2P, SK-2P, WA-2P) and fabric circle cutter (CL-10000P) For straight or curved lines. Dia. 28mm x 0.30mm T. Made of high quality carbon tool steel with chromium and tungsten added.Cutting Material: Cloth, felt, denim, lace, film, leather, thin rubber sheet, etc. Good for quilting, sewing and art & craft projects 2ea/pack.