Choose from a variety of blades that meet your crafting, quilting and paper crafting needs. Blades are long lasting with a razor sharp edge in a convenient, reusable package for prolonged blade life and convenient storage. Use a cutting mat to protect your work surface.Details:Silver45 mm2 bladesTitanium coating is 3x harder than steelFor use with Fiskars Rotary Paper Trimmers and most 45mm rotary cutters (sold separately)