WORKPRO Retractable Utility Knife and Self-Retracting Safety Box Cutter 2-in-1 with 2 Extra Blades Included - Walmart.com
Utility Knife - Retractable Box Cutter Utility Knife for Cartons,Cardboard and Boxes, 5pcs Sharp Rust Proof Razor Snap Off Blades Set,Smooth Mechanism, Perfect for Office and Home Use - - Amazon.com
Stanley 6 in. Classic Retractable Utility Knife 10-099 - The Home Depot
40 Pack] EcoQuality Green Utility Knife Retractable Box Cutter for Cartons, Boxes, Cardboard 18mm Wide Blade Cutter Great for Warehouse, Office, Arts and Crafts and Home Use - Walmart.com
Safety First System Pacific EZ4 Self-retractable Guarded Safety Cutter - Self-retractable, Safety Guard, Spring-loaded Blade, Finger Guard, Durable, Lightweight, Ergonomic Handle - Plastic - Black, Blue - 1 Each - Office Supply Hut
Heyco Retractable Safety Cutter Knife
XW Auto-Retractable Safety Utility Knife, Box Cutter of Quick Blade Change, 4 Spare Blades Storage in Handle - - Amazon.com