DOWELL Utility Knife Box Cutter Retractable Self Loading Heavy Duty Snap Off Quick Change Extra Blades(3PCS) TPR+PP Handle Cutting Cardboard Boxes or DIY - Amazon.com
DIYSELF 1 Pack Utility Knife, Box Cutter Heavy Duty with 4 Pcs Sharp Blades, Storage Space in Handle, Box Cutter Retractable for Cutting Cartons, Cardboard, Boxes, and Carpet, Razor Knife - Amazon.com
ARK-B7) Self-Retracting Safety Knife w/6 Blades, Uncarded » ALLWAY® The Tools You Ask For By Name
RW Base Red Utility Knife / Box Cutter - Anti-Slip Handle - 6 1/2" - 4 count box
Utility Knife Heavy Duty Box Cutter| Craft 18mm Retractable and Auto Charge - Work Perfect in Everyday Use, TPR Handle, ABS Body and Anti Rust Blade Slot (3 Pack) - Amazon.com