Features: Non-toxic, not easy to rust, rotatable, reusable, solid and durable. Sphere designed, with hanging iron hooks can be hung in cages for small animal to vents their emotions, relieving the pressure. Door open designed, make it easy to put food in or clean it out, avoid wasting bunny grass. You can put chunks of grass or snacks, hanging in the cage for pet to plays. Application: bunny, chinchillas, guinea pigs and other small animal playing or grass frame. Specifications: Material: Metal Size: Approx. Balls: 6x6cm/ 2.36x2.36in Chain: 13cm/ 1.18in Color: Red, Blue Package Includes: 1pc Pet Hanging Feeding Sphere note: 1-Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2-Due to the different between different monitors, the picture may not reflect the actual color of the item.