20", Songbird Diffuser Tube Feeder, Specially Designed Diffuser Keeps Food At All Perches Longer, 10 Feeding Stations Make Room For More Birds, Hinged Lid & Fluted Opening For Easy Filling, Removable Bottom Cap For Easy Cleaning, Ventilated Bottom Cap Lets Water Drain & Air Circulate To Keep Seeds Fresh Longer, Notched Hanger Swings Out Of The Way For Easy Filling.