TIFICAL 20-Pack Box Cutter Retractable, Utility Knife with Auto-Lock Design, Box Openers with 9mm Snap-off Blades, Disposable Razor Knife Exacto Knife for Carton, Cardboard, Box Knife for Office, Home

• 【What You Will Get】20 pcs economical and practical retractable utility knives(red, yellow, blue, green). And every box cutter knife is equipped with 9mm wide snap off blades, keep sharp for a long time. You deserve to choose them! 【High Carbon Steel Blade】Ultra sharpness and double hardness blade, durable and not easy to rust. This retractable box cutter is more suitable for cutting boxes, leather, cardboard, drywall, roofing, rubber, rope, paper, etc. 【Humanized Design】The safety lock prevents the blade from sliding. You don't have to worry about the blade falling off during use. very safe! Get a new sharp cutting tip by snapping-off the box cutter blade. 【Quick Change Mechanism】1. Pull out the black device at the tail of the box knife. 2. Slide the button back and pull out the blade. 3. Replace with a new blade and install the tail device. Don't worry about changing the blade. 【Risk-free Purchase】If you have any questions about the TIFICAL utility knife retractable, please contact us and we will solve it for you within 24 hours. We are committed to bringing a better shopping experience to every customer.