Double Door Deadbolt Lock

I bought this to keep my little kids out of my glass aquarium cabinet. I also bought the double door version for another cabinet and it works just as well. Each lock comes with 2 keys that work interchangeably with both locks. It's a little pricey for what it is, but it's worth every penny considering the frustration it relieves. It doesn't come with instructions but it's intuitive. I had to use a drill and dremel to carve out a cavity in the wood cabinet for the lock bolt to fit into when locked.

We have broken many of these because we installed them as they come. The problem was that somehow you must make a dugout into the wood for the deadbolt part of the lock to slide into. And I don't have that tool, maybe drilling multiple holes in a row and then using a knife to cut out the leftover wood? I don't know, but be aware, without making this dugout the strain put on the lock but locking it into a solid piece of wood will damage the lock over time.