Review on Efficient MANUFORE 5-Pack Safety Knife Package Box Opener Film Cutter with Retractable Key Chain for Shrink Wrap, Stretch Wrap, Tape, and Plastic Straps by Darren Pham

I work for one of the largest home improvement companies in the world. Safety knives are ubiquitous and part of my daily work. The first day I used them they cut plastic wrap perfectly. However, when I tried to cut open the corrugated boxes, the guard snapped and I lacerated my thumb. 5 stitches later and possibly a tendon injury, take my warning DO NOT BUY. EXTREMELY CHEAP For reference, these protective gloves have passed second stage cut resistant gloves.