3.5-quart capacity. This bigger feeder has a capacity of 3-1/2 quarts. Polycarbonate seed tube is 4" diameter x 18" tall. Metal parts on this feeder are plated with brass! Great gift idea, too. Heavy zinc die-cast top, bottom and feed stations. 6 feeding stations. A deflector in the base of the feeder directs the seed to the bottom seed ports so the birds are able to reach every last seed. Can be hung or post mounted.