This Sunflower & Peanut Tube Bird Feeder is made from durable metal. Birds will cling to the perforations located around the entire perimeter of the black metal feeder tube. The perforated feeder tube keeps the seed level visible and the flow through feeder base keeps the seed fresh and dry. The chrome cap lifts to fill the tube with a half quart of seed. This feeder may be hung with the included 6 1/2 inch hanging loop. Measures approximately 11 1/4 inches high.