QualityThis hamster ball is made of high-quality plastic, sturdy and durable, not easy to damage InstallationThe installation of the hamster toys ball is very simple, you only need to fix the two hemispheres and the lid, then flip them to lock them in place, and the assembly can be completed in a few seconds SafetyThe transparent design of thehamster balls for dwarf hamsters are convenient for you to observe your cute little pet at all times. The assembled hamster ball is not easy to fall off and will not harm your pet SportsRunning a ball can make your hamster perform some exercises.There are several safe and ventilated holes on the ball, so your little animals can play for a long time ApplicationThe hamster sports ball is suitable for hamsters, golden bears and other small fur animals. The diameter of the running ball is 12cm, so your small animals can play as much as you like