Utility Knife Box Cutter Retractable Self Loading Heavy Duty Snap off Quick Change Extra Blades (3PCS) TPR+PP - China Utility Knife, Hand Tools | Made-in-China.com
Slice Retract Mini Cutter Ceramic Blade Built in Magnet Retractable Non sparking Non conductive Rubberized Slider Button Rust free Gray Green 2.4 Length 1 Each - Office Depot
Westcott® Compact Safety Ceramic Blade Box Cutter, 2.5", Retractable Blade, Green | J & P Supply, Inc.
Auto-Retractable Industrial Knife With Safety Blade | Slice