Stanley Swivel-Lock Retractable Utility Knife
Features push-button opening and closing and a retractable blade for safety and convenience. No tools needed to change blade. The interlocking nose grips blade solidly and securely. Blade can be moved to three positions — full, half and quarter — as well as completely retracted. Has a rugged die cast aluminum body, with a blade storage compartment. Uses Heavy Duty Blades, three included.