The person who invented this "thing" has no doubt of having a problem in his childhood with a security door thus he spent his life designing a way to threaten the life of future parents who decide to secure their closets ! The plastic piece that connects the 2 adhesives ... is so hard that must have a titanic strength to do a hand ... or use both hands. But I think there's a 50% chance that you open the closet to put stuff in it, so to have both hands outlet. When has the "flexibility" he simply forget! the gap between two fastener is fixed and some furniture are unusable, such as library door a large manufacturer Swedish furniture;) In short: I recommend more a little more expensive but usable;)