40PCS Heavy Duty Retractable Utility Knives with Safety Lock - Sturdy Aluminum Box Cutters, Red Handles & Stainless Steel Blades, DIY Essentials for Ropes/Boxes/Cartons/Plastics

40PCS Bulk Heavy Duty Set: Sturdy aluminum construction and stainless steel blades ensure durability, sufficient quantity for industrial, DIY, or team use. Safety Lock & Retractable Design: Built-in safety lock prevents accidental blade exposure, retractable feature allows adjustable blade length for precise cuts. Multi-Scene Versatility: Ideal for cutting ropes, boxes, cartons, plastics, and cardboard—essential DIY tools for home, workshop, moving, or packaging tasks.