• Provides a healthy and safe way for small pets, such as hamsters and gerbils, to exercise. • Transparent design that allows you to observe your pet while it exercises, increasing interaction and enjoyment. • Made with high-quality plastic, lightweight and durable. • Easy to install, it is an excellent toy to keep your hamster entertained. • Can serve as a temporary waiting area while you clean your pet's house. • Ball diameter: 12 cm (4.7 inches). • Package weight: approximately 140 g.