Made of safe, no harm and hard plastic, you can use it for outside. The roof provides shelter for birds, has better sealing performance. Prevent the birds' foods from getting wet outdoors. In winter, this bird feeder is needed to allow birds to eat and rest comfortably. Features -Material: PP, , 304 stainless steel -Size: 16.50X16.50X16.50cm/6.48X6.48X6.48 in. - It could be filled with a variety of foods to attract birds, easy to refill and clean. - Comes with a for quick installation, allow you easy to put it on tree or hanger. - You can decorate your garden with it, hanging it on tree, balcony, windows, anywhere. - It is more easy to observe wild birds without bothering them and make you close to the nature. - Can hold large-capacity mixed food, can feed more birds at a time. Package list: 1 feeder