1. Prevents accidents: Equipped with a seamless running ball and rotating buckle design, this toy prevents hamster feet from getting stuck and ensures that they do not fall off when running, maintaining a safe and stable training environment. 2. Improved air circulation: Multiple ventilation openings in the running ball promote natural air circulation, providing sufficient oxygen for hamsters to maintain health during exercise. 3. Enhanced comfort features: The wraparound design of this oversized hamster running ball toy creates a spacious area for chubby hamsters to move , simulating their natural habitat and protecting them from interference in a cozy environment. 4. Prevent health risks: Keep your pet healthy with the running ball, promote daily exercise to keep your hamster healthy and active, and avoid potential health risks.