Vevor Utility Knife 2-Pack Retractable Box Cutter with SK5 Blades NewThe Vevor utility knife set includes two retractable box cutters designed for precise, heavy duty cutting tasks. Each knife features an aluminum alloy case, SK5 blades, and a 3 position blade adjustment for flexible cutting depth. The set also includes five blades for extended use and quick blade changes. Built for durability and control, these knives are suitable for cutting leather, cardboard, rubber cables, and other materials.