Folding Utility Knife with Blades– Set of 3 Heavy Duty Retractable Box Cutter with Aluminum Handle, Blade Lock, Belt Clip, 9 Extra Blades by Stalwart

DIYSELF 14 Pack Box Cutter Retractable, Box Cutter Knife with 18mm Wide Utility Blades, Sharp Utility Knife Retractable, Box Cutters for Office, Home, Arts Crafts, Hobby, Cardboard, Paper, Utility Knives - Canada

Multi Knife Tools

MulWark 100PC 9MM Snap Off 60 Degree Utility Knife Replacement Blades, Multi-Purpose Sharp Precision Box Cutter Blade for Universal Retractable Cutting Knives - Yahoo Shopping

HY040105

DOWELL Utility Knife Retractable Utility Knife Box Cutters Heavy Duty with 5PCS Extra Blades,Self Loading Blades Function,Knob On Top Can Withstand

KompaktGear Utility Knife – Box Cutter Knife Heavy Duty Razor Knife Premium Cutter with Holster Lightweight Aluminum Razor Knife Multifunctional Retractable Cutter with Replacement Blades : : Tools & Home Improvement

Apex WKF2 Quick-Change Folding Blade Utility Knife, 6 - On Sale - Bed Bath & Beyond - 28017061

Razor Blade Box Cutter

Cosco Plastic/Rubber Heavy Duty 8-Point Retractable Snap-Off Utility Knife, Blue, 4/Pack (091514PK4) - Yahoo Shopping

KATA 6-Pack Utility Knife, Folding Box Cutter for Cartons, Cardboard and Boxes, Quick Change Blade, 10pcs Extra SK5 Blades Included, Lock Back Mechanism - Yahoo Shopping