Thanks for the feedback gals. I have a few of the flexible ones (left by the last owners) but I don't like the idea that if they aren't tight/put back on properly they arent effective iykwim. They seem good for things you only need to lock sometimes etc. I have read alot about the internal latches but lots of ppl have reported their kids figuring them out pretty quickly and also finger jams. I like the fact that the mag locks are the ones that child care places use - bodes well for lasting and being effective. I would plan to buy extra magnets in case of loss