Product review (5 stars): Worked as advertised.
My husband installed this vent closure with no problems, thanks to the reading helpful hints from prior product reviewers.

We purchased this for our dryer vent that is located in the garage. We had an issue with a really stupid existing vent pipe installed by prior home owner, who vented the hose through the garage wall and down through our front (deck) walkway. The field mice had a hey-day climbing through those two holes and nibbling through the dryer vent hose and hanging out in the garage!

While it is not ideal location (near front door). I was a bit concerned about lint gathering at our front door. If I clean the lint trap in our dryer as I should, I have zero issues, and zero mice!

My 5 fairly large potted cacti camouflage the vent closure, as it's not the most beautiful thing to be looking at when walking up to the front door.