Made of metal anti-corrosion materialThis metal bird feeder will make your seeds safe and make your bird feeder unsuitable to be destroyed. The feeding opening, perch, lid and base of this bird feeder are made of metal, all of which are chew-proof, so even if there are squirrels, they won't easily destroy your bird feeder. In addition, this bird feeder is completely covered with paint so it won't rust even if it rains. Preservation design The mesh surface allows multiple birds to dine from all angles. As seeds are eaten, more seeds naturally fill the tray to ensure a constant supply of fresh seeds. We designed the mesh to allow better ventilation, moisture and hot air to escape from all sides of the bird feeder and replace it with fresh air for fresher bird food, thus attracting more wild birds. Retractable Design Our outdoor feeders are designed with houses, this feeder is divided into three sections that can be freely retracted, with a small hole in the middle of the bottom to prevent the tray from accumulating water and soaking seed days in the rain, which can effectively prevent the seeds from getting wet and keep them as dry as possible. Applicable to all kinds of seedsWhen the bird feeder is unfolded, it can be filled with large capacity seeds, such as black oil sunflower, or mixed with shelled nuts to attract birds, such as cardinals, cardinals, tits, goldfinches, blue jays, sparrows and more.