Stanley Knives & Blades Safety Knife - Self Lock 10-189CAbout this Item:With special round nose heavy duty blade for ultimate safetyBlade automatically retracts for safe storageImported new pattern double color plastic and aesthetic ImpactLock button using the metal material nickel plating accomplished, durable and strong LockSize: 144 millimetersPackage Contents: 1-Piece Interlock Self Retracting Utility Knife