SNNplapla Hay Manger Food Ball For Guinea Pig Hamster Rat Rabbit Fun Material: iron, galvanized steel; Diameter: 8.4cm. Iron ball design, with hanging iron hooks can be hung in cages for small animals to vent their emotions, relieving the pressure. You can put chunks of pasture or snacks, hanging in the cage for a pet to play. Application: Bunny, chinchillas, guinea pigs and other small animals playing or grass frame. Package include: 1 x Feed Dispenser Ball Toy