Instructions: Twist off ring to open roof. Insert Suet Cakes. Return roof and screw ring until lid is tight. New Fly-Through Suet cake feeder is a great way to feed suet and attract a variety of wild birds. This new type of feeder allows more birds to enjoy the suet at the same time and holds up to four suet cakes. Durable and attractive design with an antiqued cooper roof. All components of the feeder are powder coated metal. The feeder is easy to use and a mesh platform makes it easy to clean.