I bought this one to replace my old box cutter that is nearly identical in form, but a different brand. That one was good but the lock mechanism ended up jamming, so it was unable to be closed.The BIBURY one is a great replacement. It weighs a little more than my old one, so it has more heft to it which I like. Other than that, nothing fancy. It locks in place when it opens and you push the button to unlock it so it can be folded closed.The blade comes out with a button push on the blade mechaniSee full review