These are probably the best I have seen thus far for baby locks. I love that the baby cannot press the piece and learn quickly how to open the cabinet doors because you need to have the magnetic knobs which are way out of her reach to do so. Crawling stage and curious as to what is behind those cupboard doors, now a safe way to keep her out of harm's way. Easy to install and for me, just to ensure that they were stuck on well, I placed weights on them, but they are not coming off for a good while. The outlet plugs are always a great concern for crawling babies and what they will try to put in them, this takes a huge worry off my shoulders while she is crawling around, that they are already covered up. Explore away with less worry. I highly recommend these magnetic locks for anyone who has an infant.