Freezer Shield 5 "Freezer shield" Sheila 21 September 2011 I have bought and used one of these, and it is great! As other reviewers have said, it is for the freezer compartment of a fridge, rather than an entire freezer. It has prevented build-up for me --- I have 2 shelves in my compartment and I have it on one of them and not the other, and there is a very noticible difference. I am about to buy another! A note from the team Thanks for placing your review on the freezer shield.