KingTool Self-Retracting Box Cutter with Holster & Belt Clip, Auto Retractable Safety Utility Knife with Total 10PCS SK5 blades, Aaluminum Shell with Rubber Grip, Sturdy & Strong - Amazon.com
KATA 2-Pack Heavy Duty Utility Knife,Retractable and Folding Box Cutter Knife for Cartons, Cardboard and Boxes, Extra 10pcs SK5 Blades Included - Walmart.com
Retractable Utility Knife, Box Cutter, 12 Blades, Premium Rubbered Handle, Wide Razor, Smooth Mechanism, Office and Home use, for Cartons/ Rope/Cable Ties/ Handcraft, Random Color, by Lambery - Amazon.com
IRWIN 3/4-in 1-Blade Retractable Utility Knife with On Tool Blade Storage in the Utility Knives department at Lowes.com
Amazon.com: Boao 4 Pieces Retractable Knife Prop False Trick Gadget Toy Disappearing Dagger Fake Plastic Blade for Halloween Fools Day Party : Toys & Games
MyCaseBuilder - Utility Knife to cut foam
CRAFTSMAN 3/4-in 1-Blade Folding Retractable Utility Knife in the Utility Knives department at Lowes.com