The Tectonic Daytime Deadfall Feeder is molded here in the USA at the highest quality possible with high density polypropylene. Through significant product testing over the last 5 years there have been no issues with rodents or squirrels chewing through the feeder. It is not to say that a rodent or squirrel wont chew on the feeder, but highly improbable and unlikely that they could cause damage to feeder. If rodents are of concern in your area, please look out for our Tectonic Defender strip accessories that can be added to prevent rodents and varmints from climbing on the feeder.