This handy pack of Kaytee Finch Station Straight Replacement Socks contains four soft mesh socks that can be used with the Kaytee Finch Soft Mesh Feeding Station. They’re made especially for finches that prefer socks over tube feeders. The unique design and longer socks provide tons of perching options and allow numerous birds to eat at once. You can fill them with Nyjer seed or any wild finch food to attract more finches to your backyard.