Three tubes can offer any seed! “Flip” ports let you feed tiny Nyjer seed or any blend. Six feeding ports give your beautiful songbirds lots of perching room. And the large weather-guard roof protects seed. Seed ports are chew-resistant; seed tray has a quick-release for cleaning. Heavy-duty plastic. Includes a Manufacturer’s Lifetime Warranty. Holds 10 pounds of seed. Dimensions are 15 x 23-1/2 inches.