Multi-function: birds can feed through the reasonably sized side holes while resting on this feeder. Easy to fill: the feeder is perforated so you can control the amount of seed remaining to supply it if needed. Suitable capacity: the feeders can hold up to 3 bird balls, suitable for feeding multiple birds at the same time. Durable material: feeder Reinforced iron bird feeder, aging resistant and sturdy. Occasions: The bird feeder is ideal for outdoor use. You can easily feed the birds hands-free.