• High-quality material: Made from high-quality steel, these 45 mm blades stay sharp even after repeated use. • Precise cutting: Capable of cutting multiple layers of cardboard, fabric, leather, and felt up to approximately 8-16 mm thick in a single pass. • Easy replacement: The blades can be replaced quickly and easily, and are compatible with almost all 45 mm rotary cutters. • Versatility: Our 45 mm blades fit most rotary cutter handles and feature graduated markings for approximate measurements without the need for a ruler. • Wide use: Designed to cut multiple layers of craft paper, fabric, leather, plastic, and other materials, they are ideal for home, office, school, and business.