Product review (5 stars): Simple, effective, just works.  And gets the message across once and for all.
Effective.  Installs in about a minute.  Works perfectly with these locks on amazon:  https://www.amazon.com/gp/product/B000ZOUB5A/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

If you have a inconsiderate teen or twenty-something with the brain of a teen that can't be trained not to:

a) filch the food and meals intended for your baby (assuming you don't like to drive to the store for milk at 10pm or 6am with a crying baby) or

b) decides to start drinking beer after he sees the two bottles of irreplaceable home-made craft Belgian ale given to you as a gift

then this is just the thing for you.  I installed one on my fridge and freezer in the garage.  Seriously considering installing one on the kitchen fridge.

After years of fighting this battle, this has done the trick having the items you bought actually there when you want to use them.  If you did not buy it, ask before you take since they might be intended for something else other than filling your already fat belly during the middle-of-the- night eating binges.

Maybe you don't have an inconsiderate non-beer drinking boob living in your house that likes toddler food and craft beer, you might not need this.