RORABACKS 45mm Titanium Rotary Cutter Replacement Blades, 5-Pack For Use With Rotary Cutters, Mats, and Quilting Rulers PREMIUM TITANIUM BLADE: Titanium coated blade makes the razor sharp edge stronger. Manufactured to withstand the demands of everyday use and provide effortless cutting through multiple layers of fabric in a single pass. VERSATILE: The Rorabacks rotary cutter blades are compatible with alternative brands including Fiskars and Olfa. STORAGE CASE: Rorabacks blades come in a convenient heavy duty storage case that snaps closed for safe blade storage. GRADUATED MARKING SCALE: Quick checking of measurements at a glance. SATISFACTION GUARANTEED: Your complete satisfaction is extremely important to us. If for any reason you are not completely satisfied, we will send a replacement product or fully refund your purchase.