Keep big birds and squirrels; both red and gray, from hogging your bird seed! The Squirrel Buster’s adjustable, weight-sensitive, metal skirt drops down with the weight of a squirrel or large bird—the six seed ports are closed off instantly.
Use the included "cardinal ring" to give cardinals extra perching room—it lets them face their food supply, which is a more comfortable position for cardinals. If you decide not to use the cardinal ring, each of the 6 perches can be twisted in and shortened to further discourage the large birds. Includes a Manufacturer's Lifetime Guarantee. Holds approximately 3-1/2 pounds of any seed or seed mix. 28 inches tall.