Compact durable Metal Design Utility Knife offers a fully retractable blade design for safety. Provides virtually unlimited trimming, cutting and scoring applications. Ambidextrous design allows use in either hand. Knife uses any standard single edge razor blade. Comes with one blade. COSCO Retractable Jiffi Cutter - Straight Cutting is one of many Utility Knives, Cutters & Blades available through Office Depot. Made by Cosco.