Perfect for crisp, controlled cuts on a wide variety of materials, this blade fits most 45 mm rotary cutters on the market today. Ideal for cutting multiple layers of fabric, paper, felt and vinyl. High-grade, precision-ground, premium-steel 45 mm rotary blade stays sharper longer than other rotary blades. Made of: Metal Use: Replacement Rotary Blade Size: 45mm Included: Five Replacement Rotary Blade