Easy to Fill: Our fat ball feeder has a round lid that opens for you to refill the fat balls and a small loop at the opening to securely hold the lid in place to prevent it from being opened by the bird . Durable Material: Made of high-quality metal, it is not easy to be crushed and deformed, the seams are tight, and can be hung outdoors for a long time without worrying about rusting. It's not just a Fat Ball Feeder that attracts birds, it's a gorgeous addition to your garden. Proper Capacity: You will get 4 pcs black Fat Ball Bird Holer with 4 pcs S-shaped hooks, diameter 7 cm S Hook with chain: 12.5cm ,suitable for feeding multiple birds at the same time. Suitable for One Fat Ball: Only one fat ball or suet ball or half a bread can be accommodated. This can prevent bird food from deteriorating and moldy due to long-term storage outdoors, and it is also convenient to disperse hanging feeders to attract more birds, such as woodpecker sparrow, robin Wide Application: These fat ball feeders are perfect for supporting outdoor wild birds when foraging in spring,summer,autumn ,winter. All animals, whether squirrel, black bird, thrush, crow, sparrow, jay, woodpecker or red top, will be helped. The feed screw allows quick pecking.