Thank you for your review. The Moultrie 30 lb. All-in-One Metal Hanging Deer Feeder is primarily made of metal, with a durable metal hopper (barrel) for the feed storage and dispensing components, including a metal spin plate and varmint guard to resist chewing and weather damage. This all-metal construction sets it apart from Moultrie's plastic-based hanging feeders (like the 5-gallon model), making it more robust for outdoor use while holding up to about 150-200 lbs. of feed despite its 30 lb. empty weight rating. Note that minor plastic elements, such as the digital timer housing, may be present in the kit, but the core hopper and key parts are metal for longevity.