The Perky Pet fly thru bird feeder is distinct in its look and usage. It is truly a feeder for all of your favorite birds. Most interestingly, this feeder boasts fly through stations, meaning birds can pass through the middle of the feeder. This creates more feeding space and makes birds feel safer, encouraging many birds to visit. You will have the opportunity to watch birds resting in their feeding station while enjoying their food. The feeder holds up to 2 lb of black-oil sunflower seed to keep your hungry backyard birds in good supply. For your peace of mind, this feeder has an all metal construction, so you can be sure this feeder remains a focal point in your yard for years to come.