Arteza 45mm Quilting Rotary Cutter & 5 Replacement Blades (SKS-7, Set of 6) Contains one (1) 45mm rotary cutter with five (5) replacement blades Blades are made from SKS-7 tungsten Japanese steel & fits most brands including Olfa & Fiskars Ergonomically designed handle with soft-grip for comfort Blade guard safety with lock feature for protection Compatible to use with right & left hand