This Black Oil Seed Cake for wild birds comes in a 1.75 lb. size and is a great source of year round nutrition for a number of wild birds. Easy to place in suet feeder and lasts longer than regular seed. Withstands cold temperatures in the winter months. Feed year round, attracts a variety of birds and is a great source of energy. Place seed cake into feeder and hang at least 5 feet off ground.. Black Oil Sunflower Seed, Grit, Gelatin.: Size: 1.75 lb.