Patented weight actuated baffle and locking lid keep squirrels out! Keep out larger, unwanted birds by adjusting springs to one of four setting. Double-sided feeding attracts more birds. Stainless steel perches and springs will never rust. Seed capacity 3.75 pounds mixed seed. Size is 8.75x7.25x10.5. Dimensions are 7.25 X 8.75 X 10.5 UPC Code = 047977003429