Length 15 , diameter 2.5 , capacity 1 pound, 6 ports. Aluminum perches can not be chewed. Openings for nyjer seed are designed to dispense seed economically. Top assembly easily removed for cleaning. Zinc die cast tops, bases, and ports to last a lifetime. Powder coated finish won t chip or fade. Stainless steel wire squirrels can t chew.Size is 15 Inch. Dimensions are 18.75 X 5.5 X 5.5 UPC Code = 021964410735