Stanley 10-989 Contractor Grade Swivel-Lock Retractable Utility Knife N/A Imported Stanley - Black & Decker Handle swivels open for quick easy blade change; interlocking nose secures together knife halves for safety Aluminum body for maximum durability Includes 3 blades Stanley's limited lifetime warranty blade length: 2-7/17 handle length: 7 inches Starts sharper and stays sharper than standard heavy-duty blades Handle swivels open for quick easy blade change; interlocking nose secures together knife halves for safety Aluminum body for maximum durability Includes 3 blades Stanley's limited lifetime warranty; 7-inch handle