The Perky Pet Deluxe Metal Upside Down Thistle Bird Feeder 18 in. (398) has 6 upside down feeding ports to attract and perfect to invite more goldfinches who can easily feed upside down while other birds cannot. Perfect to give for those who have goldfinches as daily visitors in their garden and backyard. It also features metal squirrel resistant cap to keep those squirrels away. This product can hold up to 2 pounds of thistle seed or finch mix. This feeder empties out completely without any residue. It's a weather resistant, 18 inches feeding tube for your favorite finches.