We’ve never had to baby proof before, but baby #4 definitely needs it! I didn’t want anything permanent that needed screws, etc. – this was just what I was looking for! I bought two packs and had them installed in less that 15 minutes. My older kids (9, 5) can still open them easily and my 1 year old, happily, is perplexed 🙂 We used them across side-by-side cupboards, around the corner for cupboards on the edge, and were even able to figure out how to use it on our weird corner cabinet. Very pleased!