MANUFORE2 Pack Utility Knife Retratable Box Cutter Set with Quick Change Blade for Cutting Cartons, Cardboard with 10 Blades

I work for one of the largest household product producers in the world. Safety knives are everywhere and part of my daily work life.The first day I was using them and they cut through plastic wrap beautifully. However, when I went and tried to cut corrugated boxes, the guard snapped and I received a laceration in my thumb. 5 stitches later and possibly tendon damage, take my warning: DO NOT BUY. EXTREMELY CHEAPFor reference, these went right through cut resistant level two safety gloves.

This utility knife does what one would expect it to do. However, it is not particularly well made (but then it doesn't have to be to do what it has to do. I haven't had it long enough to rate its durability - perhaps I will update this review later.

Worked perfectly for a few (thin) boxes then broke very easily from light use. Plastic is extremely weak. Not worth the price at all. Now I'm two "safety" knives down with a deep cut in my finger $15 poorer and not willing to use the other ones. Thanks for the waste of time, money and the hole in my finger.

Don’t buy these especially if your gonna use them for work. They are just plain junk don’t even waste your time or money. Everyday so far I have had to use a new one and they all have broke off just like the pictures.

Love these blades....get a lot for a low price...works for me since I use a knife at work and it keeps the blades safe inside until I need one.

The knives are incredible. Very sturdy and fits my hand very well. Quick delivery by the seller. Very happy with the service I received.

Great razor dispenser. You get 25% less for your money but you don't have to screw around getting a razor out.

Good price but not convenient when changing blade as u have to unscrew to get it out, every time.