For use with your 45mm Olfa Rotary cutter, this decorative edge scallop blade creates a scallop or peak pattern on the edge of fleece, fabric, photographs, paper, suede, and any other material you think up!Olfa Decorative Edge Scallop Blade 45mm, for use in 45mm Olfa Rotary Cutters. Made of stainless steel for sharpness and durability.