I posted a decent review for the Adhesive Cabinet Lock by KidCo a while back but I must say my opinion of them has dropped. I invested in a second pack, after the starter set, of 4 locks. Unfortunately, only 1 of those locks worked and it only sort of works. I found out that one of my cabinets has a slightly warped door so I can’t even use a lock on it and, for whatever reason, I just can’t get the locks to work on 2 other cabinets. Of course, you have to stick them before you know if they’re work or not and you can’t really reuse them if they don’t. So I bought some non-damaging 3M commend sticky sheets (the replacement for the 3M hooks) and pried the locks off my doors with a butter knife before peeling/rubbing off the original sticky stuff to try again. No go. Besides the warped door, I don’t know why else this isn’t working. Ugh!