This tube feeder can be filled with a variety of seed types such as Sunflower, safflower and specialty seed blends. It features heavy die-cast metal caps, bases and a clear UV stabilized poly carbonate tube combine to make these feeders an investment that lasts a lifetime. Customers will appreciate the convenience of easily removing the base without the need of tools even with a seed tray attached. A built-in seed deflector in the base allows birds to remove every last seed. The metal cap lifts and pivots easily for filling and cleaning.