These locks are great for Vacation rentals, Rockiesrentals.ca use them at many of there properties. The person trying to open the cabinet needs to find where you placed the lock plus a very strong magnet. So they are not getting in. I truly recommend these locks, I have them in my house that I use for Home Exchanges thru homeexchange.com. My stuff is safe and the people have no idea whats in the cabinets.