The magnetic latches we purchase were for our custom cabinet doors, they are double the size of a regular door, so we put two on each door. They worked great!
The doors were fine before, but a 'new' puppy being brought into the house, made it necessary to keep his little nose from getting inside where his treats were.

This magnetic catch is well made, strong, and the color is just what I was after. There were no instructions, but if you already have magnetic catches, just install them the same.
Might be puzzling to someone with no experience.