Amazon.com: WEKOIL Utility Knives Retractable Box Cutter,18mm Wide Snap Off Blade Knife,11 Carbon Steel Blades,Hobby Art Paper Knives with Comfortable Handle,Heavy Duty for Office Home Warehouse,Red
Amazon.com: Amartisan 14-Piece Retractable Box Cutter, Utility Knifes for Boxes, Cartons, Cardboard Cutting, 18mm & 9mm Wide Blade Cutter, Very Suitable for Office and Home Use. : Office Products
FeiLyKi Sliding utility knife,box cutter knife,snap off utility knife small and large(small random colour),sliding blades,Snap Off Blades:with 18mm+9mm:Red - Amazon.com
Amazon.com: REXBETI 12-Pack Utility Knife, Retractable Box Cutter for Cartons, Cardboard and Boxes, 18mm Wider Razor Sharp Blade, Smooth Mechanism, Perfect for Office and Home use : Tools & Home Improvement
Amazon.com: HAUTMEC 18mm Utility Knife Box Cutter with Safety Quick Change Button, Snap off Black SK2 Ultra Sharp Blade, Anti-Slip Ergonomic Rubber Handle for Leather, Rubber, Cartons, Boxes HT0081-KN : Everything Else
Amazon.com : Office Knife Box Cutter Stationery Retractable Heavy Duty Cutting for Home School 18mm (Random Color) : Arts, Crafts & Sewing
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
WORKPRO 18mm Retractable Utility Knife, Heavy Duty Aluminum Alloy Snap-off Box Cutter with 10PC SK5 Steel Sharp Blades for Cartons, Cardboard and Boxes, Perfect for Office and Home Use - Amazon.com