Olfa 45mm Endurance Rotary Blades are circular rotary replacement blades for Olfa 45mm rotary cutters. Because the endurance blade is made of special quality tool steel, it retains its sharp edge and cuts twice as long saving you money. These blades are used for quilting, sewing, and general crafts. Perfect for cutting strips and multiple layers at once. Cuts fabric, paper, tarp, vinyl, upholstery, and more! For Original 45mm Rotary Cutter, Deluxe 45mm Rotary Cutter, and the Splash 45mm Rotary Cutter. 1 blade per pack.