Durable Metal Frame Hanging Wire The outer frame, 4 feeding ports, and 4 brackets of this bird feeder are made of sturdy metal material, which is squirrel-resistant and durable. With the help of sturdy metal hanging wire and metal hooks, you can easily hang it anywhere, such as trees, windows, fences. Internal Feed Tube Design Weather Resistant The internal food storage tube is made of thick clear plastic material, allowing you to easily observe the condition of your bird seed. Suitable for most bird seeds such as millet, black oil, striped sunflower, nigel, cracked corn, safflower, peanut, etc. The metal surfaces are coated to prevent rust, and the roof protects the seeds from contamination. Rain and snow weather. Easy to fill large capacity Turn the metal lid on the top to unlock it and refill it with seeds, then turn to lock it, very easy to use. The base of the bird feeder is designed with water holes to keep the seeds fresh and attract more wild birds. Our bird feeders hold 3 pounds of seeds. ATTRACT WILD BIRDS Our wild bird feeder is painted a bright green to better attract birds, and it will also be a lovely outdoor decoration. You can get up close and personal with your favorite birds such as cardinals, chickadees, finches and bluebirds. This is a great gift for those who love birds. Squirrel-Proof Our bird feeder's 4 feeding openings are specially designed for birds to peck at seeds, while squirrels have a hard time getting or only a few seeds. The top cover of the bird feeder is metal and screws on, making it difficult for squirrels to open or bite it. The internal feeding tube is wrapped with iron mesh, making it difficult for squirrels to bite into the tube to access the seeds. Overall, this bird feeder can: Squirrel-proof, but it’s hard to do because squirrels are so smart.