This ultra-durable poultry feeder mounts in small spaces, making it a great choice for those cute tiny coops for a few backyard hens. Holds 10 pounds of feed. Made of potable-grade PVC plastic and mounting brackets are included. To fill, remove the top lid and fill unit with feed, then re-apply lid. Unit also has an A-frame rain guard to help keep the feed dry in wet weather. Some training of your birds may be necessary when transitioning from a different style to this feeder. To train, fill the tube, then add a handful of feed to the mouth of the feeder so birds can see it and learn where the feed is located.