The Easy Cut Replacement Blades (SC-9701-B) are manufactured with the highest quality carbon steel and provide up to three-times longer lasting use. A special, patented radius blade tip helps to prevent injury and product damage when cutting. Blades do not chip and offer a sharp edge for up to 5,000 feet of cuts, slicing through cardboard cleanly and easily every time! The Easy Cut Replacement Blades come in an easy-to-open dispenser, also used to store depleted blades for future recycling. Each individual packet contains 3 blades: 1 for the main blade carriage, and 2 for the handy spare blade compartment.Razor-sharp edge effortlessly slices through various materialsQuick and straight forward installationIdeal for professional and personal use