Quick-Change Retractable Utility Knife slides the blade into three positions for use. Blade changing is simplified with a tool-free, push-button design. Swing-out blade storage keeps fresh, sharp blades safely on knife. With blade fully retracted, the nose of the durable, all-metal knife acts as a string cutter. Knife includes three heavy-duty blades (11-921) for immediate use. Handle is 6″ long.