The Squirrel Buster Classic Squirrel Proof Bird Feeder holds 1.4 quarts of seed. The feeder features a unique design that attracts wide variety of clinging & perching birds. Chew proof. 2 year hassle free warranty. The patented Squirrel Buster technology is truly squirrel proof. Thousands of delighted bird lovers have confirmed it. Openings in the wire shroud align with seed ports and provide birds access to the seed. When a squirrel climbs onto the feeder, its weight automatically forces the shroud down, closing access to the seed ports. All squirrels and many large birds are foiled, but not harmed in any way. Now that you no longer have to worry about squirrels, you are now free to locate your feeder just about anywhere. Position your feeder over your favorite window, by your deck or in a nearby tree, for those great close-up views. Use wall brackets, branch and extension hooks to help you hang your feeder. SpecificationsWidth4 in.Height21 in.Deep4 in.Capacity1.4 qtsMountingHangingBirds That Would Use This FeederCardinals, Grosbeaks, Goldfinches, Woodpeckers, Nuthatches, Finches, and ChickadeesSeed or Feed OptionsBlack oil sunflower seeds or premium mixOrigin CountryChina