The ultra-sharp blade is perfect for cutting designs in tight spaces or trimming straight edges. The ergonomic sculpted finger-loop slides over your index finger for cutting control and prevents the knife from rolling off the table. Use replacement blades 9601. Knife measures 4x1-1/4in. This package contains one craft knife with removable blade and one plastic cover. Caution: Sharp Blade. Contact may result in injury. Handle with care and keep out of reach of children.