This outdoor bird feeder attracts birds to drink or eat. This product can be installed on trees, walls, gardens, etc. It is an ideal decoration. With a diameter of 17 cm and a depth of 3 cm, its large size allows it to contain large quantities of food. This product package includes 2 plastic trays + 2 iron rings + 4 metal screws + 4 expansion screws. This product attracts birds of all sizes, a variety of beautiful birds, including cardinals, chickadees and finches.