TIFICAL 4-Pack Box Cutter Retractable, Aluminum Alloy Utility Knife, Auto-Locking Box Knife, Razor Knife Box Cutters with 10 Extra SK5 Blades, Box Opener Exacto Knife for Cutting Cardboard, Boxes

• 【PERFECT CUTTING FUNCTION】Box cutter knife is ideal for cutting carton, cardboard, carpet, wallpaper, rubber, PVC, rope, leather. Great for everyday use. Ideal for use in offices, warehouses, garages, etc. 【SK5 STEEL BLADE】 The utility knife blade is made of high hardness steel. The blade is very sharp and will not bend or break even when cutting hard materials. And comes with an extra 10 blades. 【SMOOTHLY RETRACTABLE】 Press the button on the utility knife body to push and pull the blade easily and smoothly without jamming, which is convenient to use at any time. 【SELF-LOCKING】 The blade of the box opener can be locked in 3 positions, even when cutting hard objects, the blade will not back, slide, very stable. 【ERGONOMIC GRIP】 The arc of the box cutter body fits the palm very well, so it is very comfortable to hold. And you won't feel tired even if you use it for a long time.