The Nut Berry Fruit stackable patties are only made with premium ingredients that birds love. They do not contain any "filler" seed. They contain a little bit of everything and will appeal to customers that want to offer food that most backyard birds will enjoy. They fit nicely in our single chain wire baskets where they can be stacked with other Backyard Tailz blends. They have a center 1/2" hole that will fit many other cylinder feeders. Do not store in direct sunlight. Please store in a cool, dry location. Our patties are made fresh upon ordering. Please allow up to 7 days for production. They come individually packaged in plastic. Ingredients: black oil sunflower seeds, sunflower chips, split peanuts, safflower seeds, tree nuts, cranberries, raisins, gelatin Dimensions: 6" diameter x 1.75" thick